another fix

Author: Filip Staffa

.github/workflows/dotnetcore.yml

@@ -5,9 +5,6 @@ on:
   release:
     types: [published]
 
-env:
-  DEFAULT_VERSION: "3.1.0.${{ env.GITHUB_RUN_ID }}-alpha"
-
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -33,6 +30,9 @@ jobs:
         run: dotnet build --configuration Release /p:ContinuousIntegrationBuild=true
       - name: Test
         run: dotnet test src/PostalCodes.UnitTests/PostalCodes.UnitTests.csproj
+      - name: Set DEFAULT_VERSION
+        if: github.event_name != 'release'
+        run: echo "DEFAULT_VERSION=3.1.0.${{ github.run_id }}" >> $GITHUB_ENV
       - name: Extract Version from Release Tag
         id: get_version
         run: echo "VERSION=$(echo '${{ github.event.release.tag_name || env.DEFAULT_VERSION }}' | sed -e 's/^v\.//')" >> $GITHUB_ENV