CI - publish builds on master only

other branches can be published manually

.github/workflows/docfx.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v2
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: "7.0.x"
       - name: Setup DocFX
         run: choco install docfx -y
       - name: Build Core

.github/workflows/master.yml

@@ -3,6 +3,8 @@ name: Master - Build
 on:
   workflow_dispatch:
   push:
+    branches:
+      - master
 
 jobs:
   version:

.github/workflows/nuget.yml

@@ -3,6 +3,8 @@ name: Publish Nuget packages
 on:
   workflow_dispatch:
   push:
+    branches:
+      - master
 
 jobs:
   version: