[nrf noup] test-spec: update CI-audio-test

nrf-squash! [nrf noup] ci: add .github/test-spec.yml

CI-audio-test more specific at soc/nordic.

Signed-off-by: Piotr Kosycarz <piotr.kosycarz@nordicsemi.no>

Author: nordic-piks

.github/test-spec.yml

@@ -345,7 +345,12 @@
   - "include/dfu/**/*"
   - "include/mgmt/mcumgr/**/*"
   - "samples/bluetooth/hci_ipc/**/*"
-  - "soc/nordic/**/*"
+  - any:
+      - "soc/nordic/**/*"
+      - "!soc/nordic/nrf51*"
+      - "!soc/nordic/nrf52*"
+      - "!soc/nordic/nrf54*"
+      - "!soc/nordic/nrf9*"
   - "subsys/bluetooth/audio/**/*"
   - "subsys/bluetooth/host/**/*"
   - "subsys/dfu/**/*"