(maint) update mend scan action

The java version for the mend-scan action was out of date, preventing
it from functioning correctly.

.github/workflows/mend.yaml

@@ -18,13 +18,13 @@ jobs:
         fetch-depth: 1
     # install java which is required for mend and clojure
     - name: setup java
-      uses: actions/setup-java@v3
+      uses: actions/setup-java@v4
       with:
         distribution: temurin
         java-version: 17
     # install clojure tools
     - name: Install Clojure tools
-      uses: DeLaGuardo/setup-clojure@10.1
+      uses: DeLaGuardo/setup-clojure@12.5
       with:
         # Install just one or all simultaneously
         # The value must indicate a particular version of the tool, or use 'latest'