Fix TS Axios echo client github workflow (#17815)

* test fix

* test fix

Author: wing328

.github/workflows/samples-typescript-axios-echo-api.yaml

@@ -29,7 +29,7 @@ jobs:
       - name: Run echo server
         run: |
           git clone https://github.com/wing328/http-echo-server -b openapi-generator-test-server
-          (cd http-echo-server && npm install && npm start &)
+          (cd http-echo-server && git checkout 15a684c41d4de692878636f47fcc1670af309a0f && npm install && npm start &)
 
       - name: Install
         working-directory: ${{ matrix.sample }}

samples/client/echo_api/typescript-axios/build/.openapi-generator-ignore

@@ -21,3 +21,5 @@
 #docs/*.md
 # Then explicitly reverse the ignore rule for a single file:
 #!docs/README.md
+#
+#