hack: Bump golangci-lint to v1.64.8

With go1.24 as the oldstable release, it is recommended to use a
golangci-lint version which supports go1.24 (from v1.64.2[1]) to
avoid any lint errors.

[1] https://golangci.github.io/legacy-v1-doc/product/changelog/#v1642

Signed-off-by: Anoop C S <[email protected]>

Author: anoopcs9

hack/install-tools.sh

@@ -44,7 +44,7 @@ _install_revive() {
 }
 
 _install_golangci_lint() {
-	_install_tool github.com/golangci/golangci-lint/cmd/golangci-lint@v1.60.2
+	_install_tool github.com/golangci/golangci-lint/cmd/golangci-lint@v1.64.8
 }
 
 _install_yq() {