ci: Fix missing MESON_CI_JOBNAME in the image builders

.github/workflows/os_comp.yml

@@ -87,7 +87,7 @@ jobs:
             CXX: 'g++'
 
     env:
-      MESON_CI_JOBNAME: linux-${{ github.job }}-${{ matrix.cfg.CC }}
+      MESON_CI_JOBNAME_UPDATE: linux-${{ github.job }}-${{ matrix.cfg.CC }}
 
     container:
       image: mesonbuild/ubuntu-rolling
@@ -118,6 +118,7 @@ jobs:
           fi
 
           source /ci/env_vars.sh
+          export MESON_CI_JOBNAME=$MESON_CI_JOBNAME_UPDATE
 
           update-alternatives --set x86_64-w64-mingw32-gcc /usr/bin/x86_64-w64-mingw32-gcc-posix
           update-alternatives --set x86_64-w64-mingw32-g++ /usr/bin/x86_64-w64-mingw32-g++-posix

ci/ciimage/arch/image.json

@@ -1,6 +1,7 @@
 {
   "base_image": "archlinux:latest",
   "env": {
-    "CI": "1"
+    "CI": "1",
+    "MESON_CI_JOBNAME": "linux-arch-gcc"
   }
 }

ci/ciimage/bionic/image.json

@@ -2,6 +2,7 @@
   "base_image": "ubuntu:bionic",
   "env": {
     "CI": "1",
-    "DC": "gdc"
+    "DC": "gdc",
+    "MESON_CI_JOBNAME": "linux-bionic-gcc"
   }
 }

ci/ciimage/cuda/image.json

@@ -1,5 +1,8 @@
 {
   "base_image": "archlinux:latest",
   "args": ["--only", "cuda"],
-  "env": {}
+  "env": {
+    "CI": "1",
+    "MESON_CI_JOBNAME": "linux-cuda-gcc"
+  }
 }

ci/ciimage/fedora/image.json

@@ -2,6 +2,7 @@
   "base_image": "fedora:latest",
   "env": {
     "CI":                "1",
-    "SKIP_STATIC_BOOST": "1"
+    "SKIP_STATIC_BOOST": "1",
+    "MESON_CI_JOBNAME": "linux-fedora-gcc"
   }
 }

ci/ciimage/opensuse/image.json

@@ -3,6 +3,7 @@
   "env": {
     "CI":                  "1",
     "SKIP_STATIC_BOOST":   "1",
-    "SINGLE_DUB_COMPILER": "1"
+    "SINGLE_DUB_COMPILER": "1",
+    "MESON_CI_JOBNAME": "linux-opensuse-gcc"
   }
 }

ci/ciimage/ubuntu-rolling/image.json

@@ -2,6 +2,7 @@
   "base_image": "ubuntu:rolling",
   "env": {
     "CI": "1",
-    "DC": "gdc"
+    "DC": "gdc",
+    "MESON_CI_JOBNAME": "linux-ubuntu-rolling-gcc"
   }
 }