feat: communicate new v6 plugin version (#937)

.ls-lint.yml

@@ -11,6 +11,7 @@ ignore:
   - .github
   - .husky
   - .nyc_output
+  - .stryker-tmp
   - .vscode
   - .wireit
   - .yarn

README.md

@@ -22,6 +22,9 @@
   </p>
 </div>
 
+> [!WARNING]
+> **Potentially breaking changes in v6**: Check out the [v6 announcement](https://github.com/scolladon/sfdx-git-delta/issues/936) to see how you could be impacted by some changes in the new major `v6` version of the plugin, and how to prepare to migrate to this version.
+
 <!-- TABLE OF CONTENTS -->
 <details>
   <summary>Table of Contents</summary>

src/commands/sgd/source/delta.ts

@@ -112,6 +112,9 @@ export default class SourceDeltaGenerate extends SfdxCommand {
       output.success = false
       process.exitCode = 1
     }
+    output.warnings.push(
+      '[INFORMATION] sfdx-git-delta v6 is coming soon! Read more and plan your migration: https://github.com/scolladon/sfdx-git-delta/issues/936'
+    )
     this.ux.log(JSON.stringify(output, null, 2))
     return output
   }