chore(deps): bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v3...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>

.github/workflows/main.yml

@@ -52,7 +52,7 @@ jobs:
         working-directory: addons/godot_xterm/native
         run: UID_GID="$(id -u):$(id -g)" docker-compose run -e TARGET=${{ matrix.target }} -e BITS=${{ matrix.bits }} libgodot-xterm-linux
       - name: Upload binaries
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: libgodot-xterm-${{ matrix.target }}
           path: |
@@ -162,7 +162,7 @@ jobs:
           cd addons/godot_xterm/native
           scons platform=${{ matrix.platform }} target=${{ matrix.target }} bits=${{ matrix.bits }} -j2
       - name: Upload binaries
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: libgodot-xterm-${{ matrix.target }}
           path: |
@@ -212,7 +212,7 @@ jobs:
           npx serve ../../docs/demo -p 3000 &
           npx cypress run
       - name: Upload cypress artifacts (on failure)
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: ${{ failure() }}
         with:
           name: cypress-artifacts
@@ -220,7 +220,7 @@ jobs:
             test/html5/cypress/screenshots
             test/html5/cypress/videos
       - name: Upload export
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: html5-demo
           path: docs/demo