[build] streamline gh action workflows

.github/workflows/build_PR.yml

@@ -1,4 +1,4 @@
-name: build_PR
+name: build PR
 
 on:
   pull_request:

.github/workflows/build_3.2.x.yml → .github/workflows/build_release.yml

@@ -1,8 +1,8 @@
-name: build_3.2.x
+name: build release
 
 on:
   push:
-    branches: [ 3.2.x ]
+    branches: [ '[0-9]+.[0-9]+.x' ]
 
 env:
   CMAKE_BUILD_PARALLEL_LEVEL: 2
@@ -23,7 +23,7 @@ jobs:
 
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/triqs/solid_dmft_github_ci:3.2.x
+      image: ghcr.io/triqs/solid_dmft_github_ci:${{github.ref_name}}
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/build.yml → .github/workflows/build_unstable_doc.yml

@@ -1,4 +1,4 @@
-name: build
+name: build unstable & doc
 
 on:
   push:
@@ -23,7 +23,7 @@ jobs:
 
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/triqs/solid_dmft_github_ci:unstable
+      image: ghcr.io/triqs/solid_dmft_github_ci:${{github.ref_name}}
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/docker.yml

@@ -1,9 +1,9 @@
 name: Create and publish Docker images
 
 on:
-  push: { branches: [ 3.3.x ] }
+  push: { branches: [ unstable, '[0-9]+.[0-9]+.x' ] }
   pull_request:
-    branches: [ 3.3.x ]
+    branches: [ unstable, '[0-9]+.[0-9]+.x' ]
     paths: ['Docker/**']
   workflow_call:
   workflow_dispatch:

.github/workflows/publish-to-pypi.yml

@@ -11,7 +11,7 @@ jobs:
     name: Build distribution 📦
     runs-on: ubuntu-latest
     container:   # we have to provide a working triqs installation to make the cmake step work
-      image: ghcr.io/triqs/solid_dmft_github_ci:3.3.x
+      image: ghcr.io/triqs/solid_dmft_github_ci:${{github.ref_name}}
 
     steps:
     - uses: actions/checkout@v4