fix(ci): make all SSR-related jobs as optional (#5850)

* fix(ci): make all SSR-related jobs as optional

* fix(docs): update documentation about 6.0.0 and angular versions

.travis.yml

@@ -67,6 +67,9 @@ jobs:
   - env: NGV=next
   - name: sauce-tests
   - name: "Cypress Applitools Snapshot tests"
+  - name: "Cypress suit run on SSR 1thread"
+  - name: "Cypress suit run on SSR 2thread"
+  - name: "Cypress suit run on SSR 3thread"
   include:
   # precache npm and apt dependencies
   #    - stage: precache

README.md

@@ -175,7 +175,8 @@ Here is the versions compatibility list:
 
 | ngx-bootstrap |    Angular    |  Bootstrap CSS |
 | ------------- | ------------- | -------------- |
-| 5.6.x         | 7.x.x - 9.x.x | 3.x.x or 4.x.x |
+| 6.0.0         | 9.x.x - 10.x.x | 3.x.x or 4.x.x |
+| 5.6.x         | 7.x.x - 9.1.0 | 3.x.x or 4.x.x |
 | 5.0.0 - 5.6.0 | 7.x.x - 8.x.x | 3.x.x or 4.x.x |
 | 4.x.x         | 6.x.x - 7.x.x | 3.x.x or 4.x.x |
 | 3.x.x         | 6.x.x - 7.x.x | 3.x.x or 4.x.x |

demo/src/app/common/documentation/documentation.component.html

@@ -145,9 +145,9 @@ <h2 id="usage--demo">Usage & Demo </h2>
 
       <p>Main source of API documentation and usage examples available here:
         <a href="https://valor-software.com/ngx-bootstrap/">https://valor-software.com/ngx-bootstrap/</a></p>
-      <p>Additionally you can find demos and docs deployed from latest code with <a href="https://ngx-bootstrap.surge.sh/">angular v4</a> and <a
-        href="https://ngx-bootstrap-latest.surge.sh/">angular v5</a></p>
-      <p>Server side rendered version of this documentation available <a href="https://ngx-universal.herokuapp.com/">here</a></p>
+      <p>Additionally you can find demos and docs deployed from latest code with <a href="https://ngx-bootstrap.surge.sh/">angular 9</a> and <a
+        href="https://ngx-bootstrap-latest.surge.sh/">angular 10</a></p>
+<!--      <p>Server side rendered version of this documentation available <a href="https://ngx-universal.herokuapp.com/">here</a></p>-->
 
       <h2 id="api">API</h2>
 
@@ -167,9 +167,14 @@ <h2 id="compatibility">Compatibility</h2>
         </tr>
         </thead>
         <tbody>
+        <tr>
+          <th>6.0.0</th>
+          <th>9.x.x - 10.x.x</th>
+          <th>3.x.x or 4.x.x</th>
+        </tr>
         <tr>
           <th>5.6.x</th>
-          <th>7.x.x - 9.x.x</th>
+          <th>7.x.x - 9.1.0</th>
           <th>3.x.x or 4.x.x</th>
         </tr>
         <tr>