Extend changelog check to validate table entries

.github/workflows/5_changelog_check.yml

@@ -31,11 +31,13 @@ jobs:
           else
             FORMAT="✅"
 
-            ENTRY_REGEX='^- .+ \(\[#[0-9]+\]\(https://github\.com/[^)]+/(issues|pull)/[0-9]+\)\)$'
-            INVALID=$(echo "$ADDED" | grep -E '^- ' | grep -vx -- '- None' | grep -vE "$ENTRY_REGEX" || true)
+            TABLE_ENTRY_REGEX='^\| \[#[0-9]+\]\(https://github\.com/[^)]+/(issues|pull)/[0-9]+\) \| .+ \|$'
+            TABLE_HEADER_REGEX='^\| Issue \| Comment \|$|^\| - \| - \|$'
+            PRIOR_VERSION_REGEX='^- \[v?[0-9]+\.[0-9]+\.[0-9]+\]\(https://github\.com/[^)]+/blob/[^)]+/CHANGELOG\.md\)$|^- \[\]\(\)$'
+            INVALID=$(echo "$ADDED" | grep -E '^(\||-)' | grep -vx -- '- None' | grep -vE "$TABLE_HEADER_REGEX" | grep -vE "$TABLE_ENTRY_REGEX" | grep -vE "$PRIOR_VERSION_REGEX" || true)
             if [ -n "$INVALID" ]; then
               FORMAT="❌"
-              echo "::error::Invalid CHANGELOG.md entries. Expected format: '- Description ([#123](https://github.com/<org>/<repo>/issues/123))'. Offending lines:"
+              echo "::error::Invalid CHANGELOG.md entries. Expected format: '- Description ([#123](https://github.com/<org>/<repo>/issues/123))' or, for the Prior versions section, '- [vX.X.X](https://github.com/<org>/<repo>/blob/vX.X.X/CHANGELOG.md)'. Offending lines:"
               echo "$INVALID"
             fi
           fi

CHANGELOG.md

@@ -74,6 +74,7 @@
 
 | Issue | Comment |
 | - | - |
+| [#2563](https://github.com/wazuh/wazuh-docker/issues/2563) | Fixed changelog check workflow to accept Prior versions entries |
 | [#2533](https://github.com/wazuh/wazuh-docker/pull/2533) | Fix bumper workflow failure when bump produces no changes |
 | [#2477](https://github.com/wazuh/wazuh-docker/issues/2477) | Bumper script issue when the tag is set to false |
 | [#2443](https://github.com/wazuh/wazuh-docker/issues/2443) | Fix reported WF vulnerabilities |