CI stack: drop GHC 8.2-8.8 on ubuntu-22.04 due to HsOpenSSL linking errors

Author: andreasabel

.github/workflows/stack.yml

@@ -14,7 +14,10 @@ jobs:
       fail-fast: false
       matrix:
         os:      [ubuntu-latest]
-        ghc-ver: [9.4.3, 9.2.5, 9.0.2, 8.10.7, 8.8.4, 8.6.5, 8.4.4, 8.2.2]
+        ghc-ver: [9.4.3, 9.2.5, 9.0.2, 8.10.7]
+          # On ubuntu-22.04 the old versions 8.8.4, 8.6.5, 8.4.4, 8.2.2 fail due to HsOpenSSL linking errors.
+          # They used to work under ubuntu-20.04, but it is not work the trouble maintaining them.
+          # Apparently, HsOpenSSL-0.11.6 and older are too old for ubuntu-22.04.
         include:
           - os: macos-latest
             ghc-ver: 9.4.3