Update GitHub workflow actions

To resolve warnings on deprecated packages and old NodeJS versions.

Author: follesoe

.github/workflows/ci-build.yaml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Run protolint
         uses: plexsystems/[email protected]
         with:

.github/workflows/ci-dotnet.yaml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup .NET Core @ Latest
         uses: actions/setup-dotnet@v3

.github/workflows/gen-docs.yaml

@@ -9,10 +9,10 @@ jobs:
   generate-documentation:
     runs-on: ubuntu-latest
     container:
-      image: pseudomuto/protoc-gen-doc:1.4.1
+      image: pseudomuto/protoc-gen-doc:1.5.1
     steps:
       - name: Checkout source
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: Print path
         run: echo "${{ github.workspace }}/protobuf_definitions"
       - name: Create output configDirectory