CI: GHC 9.2.5 → 9.2.7, add GHC 9.4.4

The "stack" CI job wasn't updated because we want the compiler to match
the Stackage snapshot.

Also bump Cabal to 3.8 to avoid the following error on Windows with GHC
9.4.4:

    Building library for JuicyPixels-3.3.8..
    (snip)
    [ 6 of 30] Compiling Codec.Picture.Types ( src\Codec\Picture\Types.hs, dist\build\Codec\Picture\Types.o )
    ghc-9.4.4.exe: C:\sr\ghc-9.4.4\zlib-0.6.3.0-b93e42dc6c387b7136aeb178f9efa1886c66c11e\lib\libHSzlib-0.6.3.0-b93e42dc6c387b7136aeb178f9efa1886c66c11e.a(#6:Stream.o): Not a x86_64 PE+ file.
    ghc-9.4.4.exe: Unknown COFF 4 type in getHeaderInfo.

See https://gitlab.haskell.org/ghc/ghc/-/issues/21990.

.github/workflows/main.yml

@@ -13,30 +13,21 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04, macOS-12, windows-2022]
-        cabal: ["3.6"]
+        cabal: ["3.8"]
         ghc:
           - "8.6.5"
           - "8.8.4"
           - "8.10.7"
           - "9.0.2"
-          - "9.2.5"
+          - "9.2.7"
+          - "9.4.4"
         exclude:
           # fails to build: "can't load framework: Cocoa (not found)"
-          - os: macOS-12
-            ghc: 8.6.5
+          - os: macOS-11
+            ghc: "8.6.5"
           # fails to build: "can't load framework: Cocoa (not found)"
-          - os: macOS-12
-            ghc: 8.8.4
-          # haskell/actions/setup fails to install this version because of chocolatey: https://github.com/haskell/actions/issues/129
-          - os: windows-2022
-            ghc: 9.2.5
-        include:
-          # https://github.com/haskell/actions/issues/129 advises to use
-          # 9.2.5.1, but it's broken somehow too: GHC gets installed, but then
-          # chocolatey claims that "all install methods for ghc 9.2.5.1
-          # failed". So let's use the next big thing
-          - os: windows-2022
-            ghc: 9.2.6
+          - os: macOS-11
+            ghc: "8.8.4"
 
     steps:
     - uses: actions/checkout@v2
@@ -81,7 +72,7 @@ jobs:
     strategy:
       matrix:
         stack: ["2.9.3"]
-        ghc: ["9.2.5"]
+        ghc: ["9.2.5"] # We want this to match the Stackage snapshot in stack.yaml
 
     steps:
     - uses: actions/checkout@v2
@@ -113,7 +104,7 @@ jobs:
     strategy:
       matrix:
         cabal: ["3.6"]
-        ghc: ["9.2.5"]
+        ghc: ["9.2.7"]
 
     steps:
     - uses: actions/checkout@v2

stack.yaml

@@ -1,4 +1,4 @@
-resolver: 'lts-20.10'
+resolver: 'lts-20.10' # If you change this, please update GHC version "stack / ghc" job in .github/workflows/main.yaml
 save-hackage-creds: false
 system-ghc: true
 skip-ghc-check: true