feat(core): Detect Railway release name (#639)

Author: conor-ob

packages/bundler-plugin-core/src/utils.ts

@@ -259,6 +259,8 @@ export function determineReleaseName(): string | undefined {
     process.env["HEROKU_TEST_RUN_COMMIT_VERSION"] ||
     // Heroku #2 https://docs.sentry.io/product/integrations/deployment/heroku/#configure-releases
     process.env["HEROKU_SLUG_COMMIT"] ||
+    // Railway - https://docs.railway.app/reference/variables#git-variables
+    process.env["RAILWAY_GIT_COMMIT_SHA"] ||
     // Render - https://render.com/docs/environment-variables
     process.env["RENDER_GIT_COMMIT"] ||
     // Semaphore CI - https://docs.semaphoreci.com/ci-cd-environment/environment-variables