build(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](actions/upload-artifact@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/documentation.yml

@@ -22,7 +22,7 @@ jobs:
 
     - run: nix build -L --show-trace '.#doc' -o doc/index.html
     - run: cp --remove-destination $(readlink -f doc/index.html) doc/index.html
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: doc
         path: doc/index.html

.github/workflows/release.yml

@@ -47,15 +47,15 @@ jobs:
 
     - run: nix build -L --show-trace '.#drawbridge-${{ matrix.platform.target }}'
     - run: nix run --inputs-from . 'nixpkgs#coreutils' -- --coreutils-prog=ginstall -p ./result/bin/drawbridge "drawbridge-${{ matrix.platform.target }}"
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: drawbridge-${{ matrix.platform.target }}
         path: drawbridge-${{ matrix.platform.target }}
     - run: ${{ matrix.platform.test-bin }}
 
     - run: nix build -L --show-trace '.#drawbridge-${{ matrix.platform.target }}-oci'
     - run: nix run --inputs-from . 'nixpkgs#coreutils' -- --coreutils-prog=ginstall -p ./result "drawbridge-${{ matrix.platform.target }}-oci"
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: drawbridge-${{ matrix.platform.target }}-oci
         path: drawbridge-${{ matrix.platform.target }}-oci