config(repository): update codeowners aws#6141

"DEXP" was renamed to "Flare".

Author: Jurredr

.github/CODEOWNERS

@@ -1,6 +1,6 @@
 * @aws/aws-ides-team
 packages/core/src/codewhisperer/ @aws/codewhisperer-team
 packages/core/src/amazonqFeatureDev/ @aws/earlybird
-packages/core/src/codewhispererChat/ @aws/dexp
-packages/core/src/amazonq/ @aws/dexp
+packages/core/src/codewhispererChat/ @aws/flare
+packages/core/src/amazonq/ @aws/flare
 packages/core/src/awsService/accessanalyzer/ @aws/access-analyzer