fix(ci): stop modifying .npmrc during publish to avoid lerna EUNCOMMIT [EXT-00] (#10729)

Author: jjolton-contentful

.circleci/config.yml

@@ -13,17 +13,10 @@ commands:
       - run:
           name: Setup GitHub packages
           command: |
-            if [ -f ./.npmrc ]; then mv ./.npmrc ./.npmrc.bak; fi
-            echo "//npm.pkg.github.com/:_authToken=${GITHUB_PACKAGES_WRITE_TOKEN}" > ~/.npmrc
-            echo "@contentful:registry=https://npm.pkg.github.com" >> ~/.npmrc
+            echo "//npm.pkg.github.com/:_authToken=${GITHUB_PACKAGES_WRITE_TOKEN}" >> ~/.npmrc
       - run:
           name: Publish packages
           command: npm run publish-packages
-      - run:
-          name: Restore .npmrc
-          when: always
-          command: |
-            if [ -f ./.npmrc.bak ]; then mv ./.npmrc.bak ./.npmrc; fi
 
   set_since:
     steps: