Bump maven-gh-actions-shared to v4

Author: slachiewicz

.github/workflows/maven-verify.yml

@@ -23,7 +23,7 @@ on:
 jobs:
   build:
     name: Verify
-    uses: apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v3
+    uses: apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v4
     with:
           ff-jdk: "21"
           ff-jdk-distribution: "corretto"