fix: Revert "Replace client-oauth2 with an in-repo package" (no-changelog) (#6265)

Revert "feat(core): Replace client-oauth2 with an in-repo package (#6056)"

This reverts commit 77ac953.

Author: netroy

.github/workflows/ci-master.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
         with:
-          files: packages/@n8n/client-oauth2/coverage/cobertura-coverage.xml,packages/cli/coverage/cobertura-coverage.xml,packages/core/coverage/cobertura-coverage.xml,packages/design-system/coverage/cobertura-coverage.xml,packages/editor-ui/coverage/cobertura-coverage.xml,packages/nodes-base/coverage/cobertura-coverage.xml,packages/workflow/coverage/cobertura-coverage.xml
+          files: packages/cli/coverage/cobertura-coverage.xml,packages/core/coverage/cobertura-coverage.xml,packages/design-system/coverage/cobertura-coverage.xml,packages/editor-ui/coverage/cobertura-coverage.xml,packages/nodes-base/coverage/cobertura-coverage.xml,packages/workflow/coverage/cobertura-coverage.xml
 
       - name: Lint
         env:

.github/workflows/ci-pull-requests.yml

@@ -70,7 +70,7 @@ jobs:
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
         with:
-          files: packages/@n8n/client-oauth2/coverage/cobertura-coverage.xml,packages/cli/coverage/cobertura-coverage.xml,packages/core/coverage/cobertura-coverage.xml,packages/design-system/coverage/cobertura-coverage.xml,packages/editor-ui/coverage/cobertura-coverage.xml,packages/nodes-base/coverage/cobertura-coverage.xml,packages/workflow/coverage/cobertura-coverage.xml
+          files: packages/cli/coverage/cobertura-coverage.xml,packages/core/coverage/cobertura-coverage.xml,packages/design-system/coverage/cobertura-coverage.xml,packages/editor-ui/coverage/cobertura-coverage.xml,packages/nodes-base/coverage/cobertura-coverage.xml,packages/workflow/coverage/cobertura-coverage.xml
 
   lint:
     name: Lint changes