CI: bump setup-dlang to v2 in main

Since v2 setup-dlang makes DC and DMD be absolute paths. The testsuite
doesn't fully cope with this so reset their values to only the
basename (without extension on windows).

Signed-off-by: Andrei Horodniceanu <a.horodniceanu@proton.me>

Author: the-horo

.github/workflows/main.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install latest DMD
-        uses: dlang-community/setup-dlang@v1
+        uses: dlang-community/setup-dlang@v2
       - name: Checkout
         uses: actions/checkout@v4
       - name: Run tests
@@ -100,10 +100,20 @@ jobs:
 
     # Compiler to test with
     - name: Prepare compiler
-      uses: dlang-community/setup-dlang@v1
+      uses: dlang-community/setup-dlang@v2
       with:
         compiler: ${{ matrix.dc }}
 
+    - name: Set DC and DMD
+      shell: bash
+      run: |
+        for name in DC DMD; do
+          var=${!name}
+          var=$(basename "${var}")
+          var=${var%.exe} # strip the extension
+          tee -a ${GITHUB_ENV} <<<"${name}=${var}"
+        done
+
     # Checkout the repository
     - name: Checkout
       uses: actions/checkout@v4

.github/workflows/release.yml

@@ -35,7 +35,7 @@ jobs:
 
       ## Boileterplate (compiler/repo)
       - name: Install compiler
-        uses: dlang-community/setup-dlang@v1
+        uses: dlang-community/setup-dlang@v2
         with:
           compiler: ldc-latest
       - name: Checkout repository
@@ -48,7 +48,6 @@ jobs:
         if: runner.os == 'Linux' || runner.os == 'macOS'
         env:
           GITVER: ${{ github.event.release.tag_name }}
-          DMD: "ldmd2"
           ARCH_TRIPLE: ${{ matrix.arch }}-${{ runner.os == 'linux' && 'pc-linux' || 'apple-darwin' }}
         run: |
           ldc2 -run ./build.d -release -mtriple=${ARCH_TRIPLE}
@@ -63,7 +62,6 @@ jobs:
         if: runner.os == 'Windows'
         env:
           GITVER: ${{ github.event.release.tag_name }}
-          DMD: "ldmd2"
         run: |
           ldc2 -run ./build.d -release -mtriple=${{ matrix.arch }}-pc-windows-msvc
           pushd bin