autocancel CI when new commit is made on a pull request (#429)

Author: Krastanov

.github/workflows/ci-julia-nightly.yml

@@ -4,6 +4,14 @@ on:
     branches: [master, main]
     tags: ["*"]
   pull_request:
+
+concurrency:
+  # group by workflow and ref; the last slightly strange component ensures that for pull
+  # requests, we limit to 1 concurrent job, but for the master branch we don't
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ (github.ref != 'refs/heads/master' && github.ref != 'refs/heads/main') || github.run_number }}
+  # Cancel intermediate builds, but only if it is a pull request build.
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
 env:
   PYTHON: ~
 jobs:

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ on:
 concurrency:
   # group by workflow and ref; the last slightly strange component ensures that for pull
   # requests, we limit to 1 concurrent job, but for the master branch we don't
-  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.run_number }}
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ (github.ref != 'refs/heads/master' && github.ref != 'refs/heads/main') || github.run_number }}
   # Cancel intermediate builds, but only if it is a pull request build.
   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
 
@@ -23,7 +23,7 @@ jobs:
       matrix:
         version:
           - '1'
-          - '1.9'
+          - '1.10'
         os:
           - ubuntu-latest
         threads: