restore tests

Author: FGasper

.github/workflows/all.yml

@@ -11,31 +11,26 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os:
-#          - runsOn: macos-latest
-#            setup: brew install parallel
-
-          - runsOn: ubuntu-latest
-
         version:
-#          - '4.2'
-#          - '4.4'
-#          - '5.0'
-#          - '6.0'
-#          - '7.0'
+          - '4.2'
+          - '4.4'
+          - '5.0'
+          - '6.0'
+          - '7.0'
           - '8.0'
 
         topology:
-#          - name: replset
-#            srcConnStr: mongodb://localhost:27020,localhost:27021,localhost:27022
-#            dstConnStr: mongodb://localhost:27030,localhost:27031,localhost:27032
+          - name: replset
+            srcConnStr: mongodb://localhost:27020,localhost:27021,localhost:27022
+            dstConnStr: mongodb://localhost:27030,localhost:27031,localhost:27032
 
           - name: sharded
             args: --sharded 2
             srcConnStr: mongodb://localhost:27020
             dstConnStr: mongodb://localhost:27030
 
-    runs-on: ${{matrix.os.runsOn}}
+    # There seems no good reason to test on other OSes … ?
+    runs-on: ubuntu-latest
 
     steps:
       - name: Install packages