fix dependency graph exclusions

Author: fprochazka

.github/workflows/dependency-submission.yml

@@ -25,7 +25,7 @@ jobs:
       id: dependency-submission
       uses: gradle/actions/dependency-submission@v4
       with:
-        dependency-graph-exclude-projects: ':(buildSrc|*-testing|testing-*)'
+        dependency-graph-exclude-projects: '^:(buildSrc|.*-testing|testing-.*)'
         dependency-graph-exclude-configurations: '.*[Tt]est(Compile|Runtime)Classpath'
 
     - name: Also upload the raw dependency graph as an artifact