Bump stack LTS 20 to GHC 9.2.6

Author: andreasabel

.github/workflows/stack.yml

@@ -14,9 +14,9 @@ jobs:
       fail-fast: false
       matrix:
         os:      [ubuntu-latest]
-        ghc-ver: [9.4.4, 9.2.5, 9.0.2, 8.10.7]
+        ghc-ver: [9.4.4, 9.2.6, 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.
+          # They used to work under ubuntu-20.04, but it is not worth the trouble maintaining them.
           # Apparently, HsOpenSSL-0.11.6 and older are too old for ubuntu-22.04.
         include:
           - os: macos-latest

hackage-cli.cabal

@@ -35,7 +35,7 @@ extra-source-files:
   fixtures/*.cabal
   -- Supported GHC versions when building with stack:
   stack-9.4.4.yaml
-  stack-9.2.5.yaml
+  stack-9.2.6.yaml
   stack-9.0.2.yaml
   stack-8.10.7.yaml
 

stack-9.2.6.yaml

@@ -0,0 +1,3 @@
+resolver: lts-20.12
+compiler: ghc-9.2.6
+compiler-check: match-exact