Bump fsfe/reuse-action from 3 to 4 (#80)

* Bump fsfe/reuse-action from 3 to 4

Bumps [fsfe/reuse-action](https://github.com/fsfe/reuse-action) from 3 to 4.
- [Release notes](https://github.com/fsfe/reuse-action/releases)
- [Commits](fsfe/reuse-action@v3...v4)

---
updated-dependencies:
- dependency-name: fsfe/reuse-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

* CI

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Enrico Seiler <[email protected]>

.github/workflows/ci_license.yml

@@ -26,4 +26,4 @@ jobs:
         uses: actions/checkout@v4
 
       - name: REUSE Compliance Check
-        uses: fsfe/reuse-action@v3
+        uses: fsfe/reuse-action@v4

.github/workflows/ci_macos.yml

@@ -32,7 +32,6 @@ jobs:
           - name: "clang17"
             compiler: "clang-17"
             build_type: Release
-            cxx_flags: "-stdlib=libc++" # For verbosity. This is already the default.
 
           - name: "gcc13"
             compiler: "gcc-13"
@@ -56,19 +55,11 @@ jobs:
           compiler: ${{ matrix.compiler }}
           ccache_size: 75M
 
-      - name: Install CMake
-        uses: seqan/actions/setup-cmake@main
-        with:
-          cmake: 3.25.3
-
       - name: Configure
         run: |
-          mkdir build
-          cd build
-          cmake .. -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
-                   -DCMAKE_CXX_FLAGS="${{ matrix.cxx_flags }} -Werror"
+          mkdir build && cd build
+          cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-Werror"
 
       - name: Build and run tests
-        run: |
-          cd build
-          make -j3 -k check
+        working-directory: build
+        run: make -k check