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

yarn.lock

@@ -38016,6 +38016,8 @@ __metadata:
     "@medusajs/medusa": ^1.12.2
     "@medusajs/types": ^1.8.10
     "@paypal/checkout-server-sdk": ^1.0.3
+    "@swc/core": ^1.4.8
+    "@swc/jest": ^0.2.36
     "@types/stripe": ^8.0.417
     axios: ^1.3.4
     body-parser: ^1.19.0
@@ -38037,6 +38039,8 @@ __metadata:
     "@medusajs/admin": ^7.1.10
     "@medusajs/medusa": ^1.20.3
     "@medusajs/utils": ^1.11.7
+    "@swc/core": ^1.4.8
+    "@swc/jest": ^0.2.36
     "@tanstack/react-table": ^8.7.9
     "@types/stripe": ^8.0.417
     awilix: ^8.0.1