Update dependency go to v1.22.12

Author: renovate-rancher[bot]

go.mod

@@ -2,7 +2,7 @@ module github.com/rancher/backup-restore-operator
 
 go 1.22.0
 
-toolchain go1.22.8
+toolchain go1.22.12
 
 replace (
 	github.com/imdario/mergo => dario.cat/mergo v0.3.16

tests/go.mod

@@ -2,7 +2,7 @@ module github.com/rancher/backup-restore-operator/tests
 
 go 1.22.0
 
-toolchain go1.22.8
+toolchain go1.22.12
 
 require (
 	github.com/rancher/hull v0.0.0-20230424152137-627ef5347afd