Bump actions/upload-artifact from 2 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pr.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           args: -d -z
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: AIO-PR${{ github.event.number }}
           path: .release/
@@ -32,7 +32,7 @@ jobs:
         with:
           args: -d -z -g classic
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: AIO-PR${{ github.event.number }}-classic
           path: .release/
@@ -42,7 +42,7 @@ jobs:
         with:
           args: -d -z -g cata
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: AIO-PR${{ github.event.number }}-cata
           path: .release/