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

package.json

@@ -71,6 +71,7 @@
     "prettier": "prettier",
     "jest": "jest",
     "test": "turbo run test --concurrency=50% --no-daemon",
+    "test:chunk": "./scripts/run-workspace-unit-tests-in-chunks.sh",
     "test:integration:packages": "turbo run test:integration --concurrency=50% --no-daemon --filter='./packages/*'",
     "test:integration:api": "turbo run test:integration:chunk --concurrency=50% --no-daemon --filter=integration-tests-api",
     "test:integration:plugins": "turbo run test:integration --concurrency=50% --no-daemon --filter=integration-tests-plugins",