Fixed dynatrace_web_app_javascript_updates test case directory

Author: kishikawa12

.github/workflows/tests.yml

@@ -1164,7 +1164,7 @@ jobs:
           IAM_CLIENT_ID: ${{ secrets.IAM_CLIENT_ID }}
           IAM_ACCOUNT_ID: ${{ secrets.IAM_ACCOUNT_ID }}
           IAM_CLIENT_SECRET: ${{ secrets.IAM_CLIENT_SECRET }}
-        run: go test -v ./dynatrace/api/builtin/rum/web/customrumjavascriptupdates
+        run: go test -v ./dynatrace/api/builtin/rum/web/rumjavascriptupdates
       - name: TestAlerting
         env:
           GOPROXY: "https://proxy.golang.org"