Fix release workflow (#95)

.github/workflows/mvn-publish.yml

@@ -2,10 +2,10 @@ name: Publish packages to OSSRH
 
 on:
   push:
-    branches: 
+    branches:
       - master
       - version-[0-9].[0-9]+.x
-    tags: 
+    tags:
       - v[0-9].[0-9]+.[0-9]+
   pull_request:
 
@@ -27,9 +27,11 @@ jobs:
           mvn_version=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
           git_ref=${GITHUB_REF##*/}
           pr_number=${{ github.event.number }}
-          if [[ $git_ref =~ v[0-9]+\.[0-9]+\.[0-9]+$ && v$mvn_version != $git_ref ]] ; then
-            echo Maven version $mvn_version does not match tag $git_ref
-            exit 1
+          if [[ $git_ref =~ v[0-9]+\.[0-9]+\.[0-9]+$ ]] ; then
+            if [[ v$mvn_version != $git_ref ]] ; then
+              echo Maven version $mvn_version does not match tag $git_ref
+              exit 1
+            fi
           elif [[ $pr_number != "" && $mvn_version =~ -SNAPSHOT$ ]] ; then
             pattern="s/(.+)-SNAPSHOT/\1-"$pr_number"-SNAPSHOT/g"
             mvn_version=$(echo $mvn_version | sed -E $pattern)