(feature) multiple ingestion keys (#4762)

* feat(keys): add support for multiple ingestion keys

* ci(git): remove vendor/ from git

* feat(gateway): create a proxy for sending requests to the gateway

* fix(sqlite): remove keys schema

* fix(api): replace with constant

* fix(server): remove redundant options

* fix(server): remove redundant options

* test(gateway): add unit tests for gateway proxy

* ci(docker): update gateway url

* refactor(gateway): move gateway to api layer

* fix(manager): fix declared error in manager

* feat(testing): add a new testing docker-compose

* fix(license): revert to nil license since select will never return a norows error

* feat(gateway): add feature flags

* chore(server): add a logger

---------

Co-authored-by: Srikanth Chekuri <srikanth.chekuri92@gmail.com>

.gitignore

@@ -62,4 +62,8 @@ e2e/test-results/
 e2e/playwright-report/
 e2e/blob-report/
 e2e/playwright/.cache/
-e2e/.auth
+e2e/.auth
+
+# go
+vendor/
+**/main/**