CODEOWNERS: Consistency Fix (Azure#18937)

Adding a space to `Digital Twins` to match the format used in the .NET, JS, and Python repositories.

Author: jsquire

.github/CODEOWNERS

@@ -41,7 +41,7 @@
 # PRLabel: %azure-spring
 /sdk/cosmos/azure-spring-data-cosmos-test/          @kushagraThapar @saragluna @yiliuTo @chenrujun @backwind1233 @jialindai @mbhaskar
 
-# PRLabel: %DigitalTwins
+# PRLabel: %Digital Twins
 /sdk/digitaltwins/                                  @drwill-ms @timtay-microsoft @abhipsaMisra @vinagesh @azabbasi @bikamani @barustum
 
 # PRLabel: %Event Grid