Another round of db.DefaultContext refactor (#27103)

Part of #27065

---------

Co-authored-by: KN4CK3R <admin@oldschoolhack.me>

models/asymkey/gpg_key_add.go

@@ -66,13 +66,13 @@ func addGPGSubKey(ctx context.Context, key *GPGKey) (err error) {
 }
 
 // AddGPGKey adds new public key to database.
-func AddGPGKey(ownerID int64, content, token, signature string) ([]*GPGKey, error) {
+func AddGPGKey(ctx context.Context, ownerID int64, content, token, signature string) ([]*GPGKey, error) {
 	ekeys, err := checkArmoredGPGKeyString(content)
 	if err != nil {
 		return nil, err
 	}
 
-	ctx, committer, err := db.TxContext(db.DefaultContext)
+	ctx, committer, err := db.TxContext(ctx)
 	if err != nil {
 		return nil, err
 	}