minor #20448 Replaced caution directive by warning (TimoBakx)

This PR was merged into the 6.4 branch.

Discussion
----------

Replaced `caution` directive by `warning`

Fixes #20371

Both blocks are currently rendered identically. Keeping only one of the two makes it easier to contribute.

Some blocks were elevated to danger, as they describe a security risk.

Commits
-------

3849004 Replaced caution blocks with warning

Author: wouterj

.doctor-rst.yaml

@@ -23,6 +23,7 @@ rules:
     forbidden_directives:
         directives:
             - '.. index::'
+            - '.. caution::'
     indention: ~
     lowercase_as_in_use_statements: ~
     max_blank_lines:

bundles.rst

@@ -3,7 +3,7 @@
 The Bundle System
 =================
 
-.. caution::
+.. warning::
 
     In Symfony versions prior to 4.0, it was recommended to organize your own
     application code using bundles. This is :ref:`no longer recommended <best-practice-no-application-bundles>` and bundles
@@ -63,7 +63,7 @@ Start by creating a new class called ``AcmeBlogBundle``::
     The :class:`Symfony\\Component\\HttpKernel\\Bundle\\AbstractBundle` was
     introduced in Symfony 6.1.
 
-.. caution::
+.. warning::
 
     If your bundle must be compatible with previous Symfony versions you have to
     extend from the :class:`Symfony\\Component\\HttpKernel\\Bundle\\Bundle` instead.
@@ -123,7 +123,7 @@ to be adjusted if needed:
 
 .. _bundles-legacy-directory-structure:
 
-.. caution::
+.. warning::
 
     The recommended bundle structure was changed in Symfony 5, read the
     `Symfony 4.4 bundle documentation`_ for information about the old

bundles/best_practices.rst

@@ -246,7 +246,7 @@ with Symfony Flex to install a specific Symfony version:
     # recommended to have a better output and faster download time)
     composer update --prefer-dist --no-progress
 
-.. caution::
+.. warning::
 
     If you want to cache your Composer dependencies, **do not** cache the
     ``vendor/`` directory as this has side-effects. Instead cache

bundles/extension.rst

@@ -204,7 +204,7 @@ Patterns are transformed into the actual class namespaces using the classmap
 generated by Composer. Therefore, before using these patterns, you must generate
 the full classmap executing the ``dump-autoload`` command of Composer.
 
-.. caution::
+.. warning::
 
     This technique can't be used when the classes to compile use the ``__DIR__``
     or ``__FILE__`` constants, because their values will change when loading

bundles/override.rst

@@ -19,7 +19,7 @@ For example, to override the ``templates/registration/confirmed.html.twig``
 template from the AcmeUserBundle, create this template:
 ``<your-project>/templates/bundles/AcmeUserBundle/registration/confirmed.html.twig``
 
-.. caution::
+.. warning::
 
     If you add a template in a new location, you *may* need to clear your
     cache (``php bin/console cache:clear``), even if you are in debug mode.

cache.rst

@@ -854,7 +854,7 @@ Then, register the ``SodiumMarshaller`` service using this key:
             //->addArgument(['env(base64:CACHE_DECRYPTION_KEY)', 'env(base64:OLD_CACHE_DECRYPTION_KEY)'])
             ->addArgument(new Reference('.inner'));
 
-.. caution::
+.. danger::
 
     This will encrypt the values of the cache items, but not the cache keys. Be
     careful not to leak sensitive data in the keys.

components/cache/adapters/apcu_adapter.rst

@@ -5,7 +5,7 @@ This adapter is a high-performance, shared memory cache. It can *significantly*
 increase an application's performance, as its cache contents are stored in shared
 memory, a component appreciably faster than many others, such as the filesystem.
 
-.. caution::
+.. warning::
 
     **Requirement:** The `APCu extension`_ must be installed and active to use
     this adapter.
@@ -30,7 +30,7 @@ and cache items version string as constructor arguments::
         $version = null
     );
 
-.. caution::
+.. warning::
 
     Use of this adapter is discouraged in write/delete heavy workloads, as these
     operations cause memory fragmentation that results in significantly degraded performance.

components/cache/adapters/couchbasebucket_adapter.rst

@@ -8,7 +8,7 @@ shared memory; you can store contents independent of your PHP environment.
 The ability to utilize a cluster of servers to provide redundancy and/or fail-over
 is also available.
 
-.. caution::
+.. warning::
 
     **Requirements:** The `Couchbase PHP extension`_ as well as a `Couchbase server`_
     must be installed, active, and running to use this adapter. Version ``2.6`` or

components/cache/adapters/couchbasecollection_adapter.rst

@@ -8,7 +8,7 @@ shared memory; you can store contents independent of your PHP environment.
 The ability to utilize a cluster of servers to provide redundancy and/or fail-over
 is also available.
 
-.. caution::
+.. warning::
 
     **Requirements:** The `Couchbase PHP extension`_ as well as a `Couchbase server`_
     must be installed, active, and running to use this adapter. Version ``3.0`` or

components/cache/adapters/filesystem_adapter.rst

@@ -33,7 +33,7 @@ and cache root path as constructor parameters::
         $directory = null
     );
 
-.. caution::
+.. warning::
 
     The overhead of filesystem IO often makes this adapter one of the *slower*
     choices. If throughput is paramount, the in-memory adapters