Remove settings.xml from history and add to .gitignore

Hardcoded OSSRH credentials were committed in settings.xml.
Removed the file from git history using git-filter-repo and
added **/settings.xml to .gitignore to prevent future commits.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: liornabat-sealights <l.nabat@tricentis.com>

Author: liornabat-sealights

.gitignore

@@ -63,6 +63,9 @@ secrets.yml
 .gradletasknamecache
 .sts4-cache
 
+# Maven settings (may contain credentials)
+**/settings.xml
+
 # Maven specific ignores
 target/
 pom.xml.tag