bumped version to v0.40.0_preview_2

minimum Go version increased to go1.24.0

disabled unconvert linter. the latest version of the linter does not
work with go1.24.0

modified 0001-statsviz.patch to match changes go version change in go.mod

Author: JetSetIlly

0001-statsviz.patch

@@ -3,7 +3,7 @@ index 7575b599c..adfee04bf 100644
 --- a/go.mod
 +++ b/go.mod
 @@ -3,6 +3,7 @@ module github.com/jetsetilly/gopher2600
- go 1.22.0
+ go 1.24.0
 
  require (
 +	github.com/arl/statsviz v0.6.0

Makefile

@@ -1,5 +1,5 @@
 
-version = v0.40.0-preview
+version = v0.40.0-preview_2
 
 goBinary = go
 gcflags = -c 3 -B -wb=false -l -l -l -l
@@ -82,14 +82,14 @@ ifeq (, $(shell which go-errorlint))
 	$(error "go-errorlint not installed")
 endif
 # https://github.com/mdempsky/unconvert
-ifeq (, $(shell which unconvert))
-	$(error "unconvert not installed")
-endif
+# ifeq (, $(shell which unconvert))
+# 	$(error "unconvert not installed")
+# endif
 
 lint: check_linters
 	go vet ./...
 	go-errorlint -c 0 -errorf -errorf-multi ./...
-	unconvert ./...
+	# unconvert ./...
 
 ### testing targets
 .PHONY: test race race_debug fuzz

go.mod

@@ -1,6 +1,6 @@
 module github.com/jetsetilly/gopher2600
 
-go 1.22.0
+go 1.24.0
 
 require (
 	github.com/go-audio/audio v1.0.0