chore(deps): update ssciwr/doxygen-install action to v2

Author: renovate[bot]

.github/workflows/apidocs.yml

@@ -32,7 +32,7 @@ jobs:
         uses: ./.github/actions/install-dependencies
 
       - name: Install Doxygen
-        uses: ssciwr/doxygen-install@501e53b879da7648ab392ee226f5b90e42148449 # v1.6.4
+        uses: ssciwr/doxygen-install@ad81ff239f3be5262e2577abce2d728c426fcc59 # v2.0.0
         with:
           version: "1.12.0"