Upgrade GitHub Actions for Node 24 compatibility (#2846)

Summary:
Upgrade GitHub Actions to their latest versions to ensure compatibility with Node 24, as Node 20 will reach end-of-life in April 2026.

## Changes

| Action | Old Version(s) | New Version | Release | Files |
|--------|---------------|-------------|---------|-------|
| `actions/checkout` | [``](https://github.com/actions/checkout/releases/tag/) | [`v6`](https://github.com/actions/checkout/releases/tag/v6) | [Release](https://github.com/actions/checkout/releases/tag/v6) |  |
| `actions/setup-java` | [``](https://github.com/actions/setup-java/releases/tag/) | [`v5`](https://github.com/actions/setup-java/releases/tag/v5) | [Release](https://github.com/actions/setup-java/releases/tag/v5) |  |
| `actions/upload-artifact` | [``](https://github.com/actions/upload-artifact/releases/tag/) | [`v6`](https://github.com/actions/upload-artifact/releases/tag/v6) | [Release](https://github.com/actions/upload-artifact/releases/tag/v6) |  |

## Context

Per [GitHub's announcement](https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/), Node 20 is being deprecated and runners will begin using Node 24 by default starting March 4th, 2026.

### Why this matters

- **Node 20 EOL**: April 2026
- **Node 24 default**: March 4th, 2026
- **Action**: Update to latest action versions that support Node 24

### Security Note

Actions that were previously pinned to commit SHAs remain pinned to SHAs (updated to the latest release SHA) to maintain the security benefits of immutable references.

### Testing

These changes only affect CI/CD workflow configurations and should not impact application functionality. The workflows should be tested by running them on a branch before merging.

Pull Request resolved: #2846

Differential Revision: D91469467

Pulled By: oprisnik

fbshipit-source-id: 6f53bff3ce038464f42c0be6c36fa985c3d41264

Author: salmanmkc

.github/workflows/build.yml

@@ -10,15 +10,15 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Print pre-setup debug info
       run: ./ci/print-debug-info.sh
     - uses: nttld/setup-ndk@v1
       id: setup-ndk
       with:
         ndk-version: r27b
     - name: Install JDK
-      uses: actions/setup-java@v4
+      uses: actions/setup-java@v5
       with:
         distribution: 'temurin'
         java-version: |
@@ -40,6 +40,6 @@ jobs:
       run: |
         mkdir -p ./gh_actions/test-results/junit
         find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ./gh_actions/test-results/junit \;
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         path: "./gh_actions/test-results"

.github/workflows/gradle-wrapper-validation.yml

@@ -6,5 +6,5 @@ jobs:
     name: "Validation"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: gradle/actions/wrapper-validation@v3

.github/workflows/release.yml

@@ -14,9 +14,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install JDK
-      uses: actions/setup-java@v4
+      uses: actions/setup-java@v5
       with:
         distribution: 'temurin'
         java-version: |