change to docker username var instead of secret

Author: mowies

.github/workflows/base-release.yaml

@@ -76,7 +76,7 @@ jobs:
       - name: Log into Docker.io
         uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
+          username: ${{ vars.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_TOKEN_COLLECTOR_RELEASES }}
 
       - name: Login to GitHub Package Registry
@@ -210,7 +210,7 @@ jobs:
       - name: Log into Docker.io
         uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
+          username: ${{ vars.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_TOKEN_COLLECTOR_RELEASES }}
 
       - name: Login to GitHub Package Registry

.github/workflows/release-builder.yaml

@@ -52,7 +52,7 @@ jobs:
       - name: Log into Docker.io
         uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
+          username: ${{ vars.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Login to GitHub Package Registry
         uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0

.github/workflows/release-opampsupervisor.yaml

@@ -52,7 +52,7 @@ jobs:
       - name: Log into Docker.io
         uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
+          username: ${{ vars.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_TOKEN_COLLECTOR_RELEASES }}
       - name: Login to GitHub Package Registry
         uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0