Update GitHub Actions workflows to use latest action versions (#51)

Author: xavierjohn

.github/workflows/build.yml

@@ -14,11 +14,11 @@ jobs:
 
     steps:
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@v5
       with:
         dotnet-version: '8.0.x'
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0 # depth is needed for nbgv
     - uses: dotnet/nbgv@master
@@ -39,7 +39,7 @@ jobs:
       run: |
         dotnet pack --no-build --verbosity normal -c Release -o artifacts/
         
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       if: ${{ success() && !github.base_ref }}
       with:
         name: artifact

.github/workflows/codeql.yml

@@ -46,13 +46,13 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0 # avoid shallow clone so nbgv can do its work.
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@v4
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -66,7 +66,7 @@ jobs:
     # Autobuild attempts to build any compiled languages (C/C++, C#, Go, Java, or Swift).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v3
+      uses: github/codeql-action/autobuild@v4
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -79,6 +79,6 @@ jobs:
     #     ./location_of_script_within_repo/buildscript.sh
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@v4
       with:
         category: "/language:${{matrix.language}}"