Fix CI: remove suffix for default branch and fix deprecation warnings.

Author: rstarkov

.github/workflows/build.yml

@@ -10,29 +10,29 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Prepare version
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           script: |
             const script = require(require('path').resolve('./.github/workflows/version.js'))
             const vs = script({ context, github, firstRev: 'cfefc91c' });
             const majmin = '1.1';
             let ver_str = vs.formatVersion(`${majmin}.$(GitRevCount)-$(GitBranch) [$(GitSha6)/$(yyyy)-$(mm)-$(dd)]`);
             let ver_suf = vs.formatVersion('$(GitBranch)');
-            if (ver_suf == 'main') {
-              ver_str = ver_str.replace('-main', '');
+            if (ver_suf == 'master') {
+              ver_str = ver_str.replace('-master', '');
               ver_suf = '';
             }
             core.exportVariable('VER_STR', ver_str);
             core.exportVariable('VER_NUM', vs.formatVersion(`${majmin}.$(GitRevCount)`));
             core.exportVariable('VER_SUF', ver_suf);
 
       - name: Install dotnet
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: '8.x'
           dotnet-quality: 'ga'
@@ -50,7 +50,7 @@ jobs:
         run: dotnet nuget push Publish/*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: RT.Servers-v${{env.VER_NUM}}
           path: Publish