Remove 8.6.5 from CI and Makefile

Author: andreabedini

.github/workflows/validate.yml

@@ -70,17 +70,14 @@ jobs:
         # If you remove something from here, then add it to the old-ghcs job.
         # Also a removed GHC from here means that we are actually dropping
         # support, so the PR *must* have a changelog entry.
-        ghc: ['9.10.1', '9.8.2', '9.6.4', '9.4.8', '9.2.8', '9.0.2', '8.10.7', '8.8.4', '8.6.5']
+        ghc: ['9.10.1', '9.8.2', '9.6.4', '9.4.8', '9.2.8', '9.0.2', '8.10.7', '8.8.4']
         exclude:
           # corrupts GHA cache or the fabric of reality itself, see https://github.com/haskell/cabal/issues/8356
           - os: windows-latest
             ghc: '8.10.7'
           # lot of segfaults caused by ghc bugs
           - os: windows-latest
             ghc: '8.8.4'
-          # it often randomly does "C:\Users\RUNNER~1\AppData\Local\Temp\ghcFEDE.c: DeleteFile "\\\\?\\C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\ghcFEDE.c": permission denied (Access is denied.)"
-          - os: windows-latest
-            ghc: '8.6.5'
 
     steps:
 

Makefile

@@ -178,14 +178,12 @@ cabal-install-test-accept:
 .PHONY: validate-via-docker-all
 validate-via-docker-all : validate-via-docker-8.2.2
 validate-via-docker-all : validate-via-docker-8.4.4
-validate-via-docker-all : validate-via-docker-8.6.5
 validate-via-docker-all : validate-via-docker-8.8.4
 validate-via-docker-all : validate-via-docker-8.10.4
 
 .PHONY: validate-dockerfiles
 validate-dockerfiles : .docker/validate-8.10.4.dockerfile
 validate-dockerfiles : .docker/validate-8.8.4.dockerfile
-validate-dockerfiles : .docker/validate-8.6.5.dockerfile
 validate-dockerfiles : .docker/validate-8.4.4.dockerfile
 validate-dockerfiles : .docker/validate-8.2.2.dockerfile
 
@@ -204,10 +202,6 @@ validate-via-docker-8.2.2:
 validate-via-docker-8.4.4:
 	docker build $(DOCKERARGS) -t cabal-validate:8.4.4 -f .docker/validate-8.4.4.dockerfile .
 
-.PHONY: validate-via-docker-8.6.5
-validate-via-docker-8.6.5:
-	docker build $(DOCKERARGS) -t cabal-validate:8.6.5 -f .docker/validate-8.6.5.dockerfile .
-
 .PHONY: validate-via-docker-8.8.4
 validate-via-docker-8.8.4:
 	docker build $(DOCKERARGS) -t cabal-validate:8.8.4 -f .docker/validate-8.8.4.dockerfile .