[nrf noup] ci: Update Matter CI test spec

Update test spec for Matter project

Signed-off-by: Michał Szablowski <[email protected]>

Author: doublemis1

.github/test-spec.yml

@@ -84,7 +84,19 @@
   - "**/*"
 
 "CI-matter-test":
-  - "**/*"
+  - "include/dfu/**/*"
+  - "include/mgmt/mcumgr/**/*"
+  - "soc/arm/nordic_nrf/**/*"
+  - "subsys/dfu/**/*"
+  - "subsys/settings/**/*"
+  - "subsys/net/**/*"
+  - "subsys/mgmt/mcumgr/**/*"
+  - "drivers/net/**/*"
+  - "samples/hci_rpmsg/**/*"
+  - any:
+    - "subsys/bluetooth/**/*"
+    - "!subsys/bluetooth/mesh/**/*"
+    - "!subsys/bluetooth/audio/**/*"
 
 "CI-find-my-test":
   - "**/*"