Update build.yml

.github/workflows/build.yml

@@ -82,16 +82,16 @@ jobs:
           )
 
       - name: Checking out MM:Source
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: alliedmodders/metamod-source
           ref: ${{ matrix.mm_branch }}
           path: metamod-${{ matrix.mm_version }}
 
       - name: Setting up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.12'
 
       - name: Setting up ambuild
         run: |
@@ -99,21 +99,21 @@ jobs:
           pip install git+https://github.com/accelerator74/ambuild
 
       - name: Checking out hl2sdk-l4d
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: alliedmodders/hl2sdk
           ref: l4d
           path: hl2sdk-l4d
 
       - name: Checking out hl2sdk-l4d2
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: alliedmodders/hl2sdk
           ref: l4d2
           path: hl2sdk-l4d2
 
       - name: Checking out own repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: src
 
@@ -134,13 +134,13 @@ jobs:
           ambuild
 
       - name: Uploading l4d package
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ github.event.repository.name }}-l4d-${{ matrix.os_short }}-${{ env.GITHUB_SHA_SHORT }}
           path: src/build_l4d/package
 
       - name: Uploading l4d2 package
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ github.event.repository.name }}-l4d2-${{ matrix.os_short }}-${{ env.GITHUB_SHA_SHORT }}
           path: src/build_l4d2/package
@@ -153,7 +153,7 @@ jobs:
 
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
 
       - name: Package
         run: |