CI: shellcheck: include call_audio_idle_suspend_workaround script (MR 3639)

[ci:skip-build]: already built successfully in CI

.ci/shellcheck.sh

@@ -26,6 +26,7 @@ sh_files="
 	./main/ttyescape/*.post-install
 	./main/unl0kr/unlock.sh
 	./main/msm-firmware-loader/*.post-install
+	./device/community/soc-qcom-sdm845/call_audio_idle_suspend_workaround.sh
 
 	$(find . -path './main/postmarketos-ui-*/*.sh')
 	$(find . -path './main/postmarketos-ui-*/*.pre-install')