chore(CI): Tweak version handling for upstream releases (#198)

Author: mtodor

.github/workflows/build.yml

@@ -5,7 +5,8 @@ on:
     branches:
       - main
     tags:
-      - 'v[0-9]+.[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+.[0-9]+-rc.[0-9]+'
   pull_request:
     types:
       - opened
@@ -44,7 +45,7 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=semver,pattern={{version}}
-            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
+            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/') && !contains(github.ref, '-') }}
             type=sha,prefix=,format=short
           labels: |
             summary=StackRox MCP Server

README.md

@@ -244,7 +244,7 @@ Docker/Podman will automatically pull the correct image for your platform.
 | Tag Pattern | Description | Example |
 |-------------|-------------|---------|
 | `latest` | Latest release version | `quay.io/stackrox-io/mcp:latest` |
-| `v{version}` | Specific release version | `quay.io/stackrox-io/mcp:v1.0.0` |
+| `{version}` | Specific release version | `quay.io/stackrox-io/mcp:1.0.0` |
 | `{commit-sha}` | Specific commit from main branch | `quay.io/stackrox-io/mcp:a1b2c3d` |
 
 ### Usage