build: go 1.24

We were running behind and there were quite some deprecations to update.
This was mostly in the upstream copy/pasta package but seems quite
minimal.

vendor/github.com/charmbracelet/x/ansi/iterm2.go

@@ -0,0 +1,18 @@
+package ansi
+
+import "fmt"
+
+// ITerm2 returns a sequence that uses the iTerm2 proprietary protocol. Use the
+// iterm2 package for a more convenient API.
+//
+//	OSC 1337 ; key = value ST
+//
+// Example:
+//
+//	ITerm2(iterm2.File{...})
+//
+// See https://iterm2.com/documentation-escape-codes.html
+// See https://iterm2.com/documentation-images.html
+func ITerm2(data any) string {
+	return "\x1b]1337;" + fmt.Sprint(data) + "\x07"
+}