Skip duplicate downgrade tests (#639)

* Skip duplicate downgrade tests

* Cancel concurrent downgrade job

Author: jishnub

.github/workflows/downgrade.yml

@@ -1,17 +1,39 @@
 name: Downgrade
+
+concurrency:
+  group: build-${{ github.event.pull_request.number || github.ref }}-${{ github.workflow }}
+  cancel-in-progress: true
+
 on:
   pull_request:
     branches:
       - master
     paths-ignore:
       - 'docs/**'
+      - 'LICENSE'
+      - 'README.md'
+      - '.github/workflows/TagBot.yml'
   push:
     branches:
       - master
     paths-ignore:
       - 'docs/**'
+      - 'LICENSE'
+      - 'README.md'
+      - '.github/workflows/TagBot.yml'
 jobs:
+  pre_job:
+    # continue-on-error: true # Uncomment once integration is finished
+    runs-on: ubuntu-latest
+    # Map a step output to a job output
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v5
   test:
+    needs: pre_job
+    if: needs.pre_job.outputs.should_skip != 'true'
     runs-on: ubuntu-latest
     strategy:
       matrix:

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFunBase"
 uuid = "fbd15aa5-315a-5a7d-a8a4-24992e37be05"
-version = "0.9.24"
+version = "0.9.25"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"