fix: Don't cancel ci image builds (#2259)

.github/workflows/update_docker_ci.yml

@@ -23,9 +23,10 @@ on:
   workflow_dispatch:
 
 concurrency:
-  # Only cancel in-progress jobs or runs for the current workflow - matches against branch & tags
+  # Only matches runs for the current workflow - matches against branch & tags
   group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
+  # We want to execute all builds sequentially in develop
+  cancel-in-progress: false
 
 env:
   GHCR_REPO: ghcr.io/${{ github.repository_owner }}

docker/compilers/gcc/Dockerfile

@@ -10,7 +10,7 @@ ARG GCC_MAJOR_VERSION
 ARG GCC_MINOR_VERSION=3
 ARG GCC_PATCH_VERSION=0
 ARG GCC_VERSION=${GCC_MAJOR_VERSION}.${GCC_MINOR_VERSION}.${GCC_PATCH_VERSION}
-ARG BUILD_VERSION=5
+ARG BUILD_VERSION=6
 
 ARG DEBIAN_FRONTEND=noninteractive
 ARG TARGETARCH