Bump various versions in actions (#2194)

Bumps various versions in actions, as well as ensuring consistency
across workflows wrt versions used. One of the key reasons is ensuring
that we're up to date and consistent (previously having used 22.04 and
24.04), also since 3.11 is EOL.

.github/workflows/photon-api-docs.yml

@@ -27,7 +27,7 @@ jobs:
     defaults:
       run:
         working-directory: photon-client
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - name: Install pnpm
@@ -52,7 +52,7 @@ jobs:
   run_java_cpp_docs:
     name: Build Java and C++ API Docs
     needs: [validation]
-    runs-on: "ubuntu-22.04"
+    runs-on: "ubuntu-24.04"
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
@@ -77,10 +77,10 @@ jobs:
   publish_api_docs:
     name: Publish API Docs
     needs: [run_java_cpp_docs]
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       # Download docs artifact
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v7
         with:
           pattern: docs-*
       - run: find .
@@ -104,9 +104,9 @@ jobs:
   publish_demo:
       name: Publish PhotonClient Demo
       needs: [build_demo]
-      runs-on: ubuntu-22.04
+      runs-on: ubuntu-24.04
       steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v7
         with:
           name: built-demo
       - run: find .