feat(medusa-payment-paypal,medusa-payment-stripe): speed up unit tests in CI (#6806)

* chore: shard unit tests

* chore: move paypal and stripe to swc

* chore: update actions

* chore: refactor http paypal client

* chore: added changeset

* chore: remove medusa changes

.github/actions/cache-deps/action.yml

@@ -17,3 +17,6 @@ runs:
       # We want to only bootstrap and install if no cache is found.
     - run: yarn install --immutable
       shell: bash
+
+    - run: yarn build
+      shell: bash