Update tj-actions/branch-names action to v9

Author: renovate[bot]

.github/workflows/build.yml

@@ -23,7 +23,7 @@ jobs:
     steps:
       - name: Get branch names.
         id: branch-names
-        uses: tj-actions/branch-names@6871f53176ad61624f978536bbf089c574dc19a2 # v8
+        uses: tj-actions/branch-names@5250492686b253f06fa55861556d1027b067aeb5 # v9
 
       - name: Checkout project
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4