[GH-19267] Spelling comments (#19268)

* spelling: comments

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

services/cache/provider.go

@@ -9,7 +9,7 @@ import (
 	"github.com/mattermost/mattermost-server/v6/model"
 )
 
-// CacheOptions contains options for initializaing a cache
+// CacheOptions contains options for initializing a cache
 type CacheOptions struct {
 	Size                   int
 	DefaultExpiry          time.Duration