BUILD/MINOR: update latest branch and doc.yaml source for docker releases

Update the GitHub Actions workflows for Docker manual and auto releases to align with the current branching strategy:
- Change the fallback LATEST_BRANCH value from "dev" to "1.0".
- Fetch doc.yaml from the "dev" branch instead of "master" to accurately determine the active version.

Author: oktalz

.github/workflows/docker_auto_release.yml

@@ -12,7 +12,7 @@ jobs:
     env:
       DOCKER_PLATFORMS: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64
       DOCKER_IMAGE: haproxytech/haproxy-unified-gateway
-      LATEST_BRANCH: "dev"
+      LATEST_BRANCH: "1.0"
     steps:
       - name: Login to Docker Hub
         id: login_docker
@@ -50,7 +50,7 @@ jobs:
           echo "BUILD_DATE=$(date +'%Y-%m-%d %H:%M:%S')" >> $GITHUB_ENV
           echo "GIT_SHA=$(git rev-parse --short HEAD | cut -c1-7)" >> $GITHUB_ENV
           echo "GIT_REF=$(git symbolic-ref -q --short HEAD || git describe --tags --exact-match)" >> $GITHUB_ENV
-          echo "LATEST_BRANCH=$(curl -sfSL 'https://raw.githubusercontent.com/haproxytech/haproxy-unified-gateway/master/documentation/doc.yaml' 2>/dev/null | awk -F: '/^active_version/ {gsub(/^ /,"",$2); print $2}' || echo $LATEST_BRANCH)" >> $GITHUB_ENV
+          echo "LATEST_BRANCH=$(curl -sfSL 'https://raw.githubusercontent.com/haproxytech/haproxy-unified-gateway/dev/documentation/doc.yaml' 2>/dev/null | awk -F: '/^active_version/ {gsub(/^ /,"",$2); print $2}' || echo $LATEST_BRANCH)" >> $GITHUB_ENV
 
       - name: Build and push latest stable branch
         if: ${{ env.BUILD_BRANCH == env.LATEST_BRANCH }}

.github/workflows/docker_manual_release.yml

@@ -10,7 +10,7 @@ jobs:
     env:
       DOCKER_PLATFORMS: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64
       DOCKER_IMAGE: haproxytech/haproxy-unified-gateway
-      LATEST_BRANCH: "dev"
+      LATEST_BRANCH: "1.0"
     steps:
       - name: Login to Docker Hub
         id: login_docker
@@ -52,7 +52,7 @@ jobs:
           echo "BUILD_DATE=$(date +'%Y-%m-%d %H:%M:%S')" >> $GITHUB_ENV
           echo "GIT_SHA=$(git rev-parse --short HEAD | cut -c1-7)" >> $GITHUB_ENV
           echo "GIT_REF=$(git symbolic-ref -q --short HEAD || git describe --tags --exact-match)" >> $GITHUB_ENV
-          echo "LATEST_BRANCH=$(curl -sfSL 'https://raw.githubusercontent.com/haproxytech/haproxy-unified-gateway/master/documentation/doc.yaml' 2>/dev/null | awk -F: '/^active_version/ {gsub(/^ /,"",$2); print $2}' || echo $LATEST_BRANCH)" >> $GITHUB_ENV
+          echo "LATEST_BRANCH=$(curl -sfSL 'https://raw.githubusercontent.com/haproxytech/haproxy-unified-gateway/dev/documentation/doc.yaml' 2>/dev/null | awk -F: '/^active_version/ {gsub(/^ /,"",$2); print $2}' || echo $LATEST_BRANCH)" >> $GITHUB_ENV
 
       - name: Build and push latest stable branch
         if: ${{ env.BUILD_BRANCH == env.LATEST_BRANCH }}