Fix fleet setup for test for 8.15.3

Author: dimuon

.github/workflows/test.yml

@@ -153,7 +153,7 @@ jobs:
 
       - id: setup-fleet
         name: Setup Fleet
-        if: matrix.version == '8.10.3' || matrix.version == '8.11.4' || matrix.version == '8.12.2' || matrix.version == '8.13.4' || matrix.version == '8.14.3' || matrix.version == '8.15.0'
+        if: matrix.version == '8.10.3' || matrix.version == '8.11.4' || matrix.version == '8.12.2' || matrix.version == '8.13.4' || matrix.version == '8.14.3' || matrix.version == '8.15.3'
         run: |-
           make setup-kibana-fleet
         env: