Put all ci status within one dummy file

Author: hgrecco

.github/workflows/ci.yml

@@ -83,3 +83,13 @@ jobs:
       run: |
         pip install coveralls
         coveralls --finish
+
+  # Dummy task to summarize all. See https://github.com/bors-ng/bors-ng/issues/1300
+  ci-success:
+    name: ci
+    if: ${{ success() }}
+    needs: test-linux
+    runs-on: ubuntu-latest
+    steps:
+      - name: CI succeeded
+        run: exit 0

bors.toml

@@ -1,7 +1,5 @@
 status = [
-  "test (3.7, numpy>=1.14,<2.0.0, pandas==1.2)",
-  "test (3.8, numpy>=1.14,<2.0.0, pandas==1.2)",
-  "test (3.9, numpy>=1.14,<2.0.0, pandas==1.2)",
+  "ci",
   "lint"
 ]
 delete_merged_branches = true