chore: run e2e tests in CI

[sohankshirsagar]

Running all e2e tests in CI take about 4.5 minutes

Note

Adds a GitHub Actions E2E workflow and parallel runner, updates all E2E tests to use docker compose with isolated projects/ports, improves helpers and MySQL2 mock, and tweaks fetch instrumentation.

• CI:
  • E2E Workflow: Adds .github/workflows/e2e.yml to build SDK and run all E2E tests (with Docker Buildx) and cleanup resources.
• E2E Orchestration:
  • Parallel Runner: Introduces run-all-e2e-tests.sh to discover and run per-library run-all.sh with configurable concurrency and port allocation.
  • Common Helpers: Enhances e2e-common/e2e-helpers.sh (CI-safe cleanup, stricter TCP warning/trace checks, and run_all_e2e_tests).
• Tests:
  • Standardize docker compose: Migrate all docker-compose calls to docker compose, add unique project names, and parameterize ports via APP_PORT/GRPC_PORT.
  • Per-library launchers: Add run-all.sh for fetch, http, grpc, ioredis, mysql2, pg, and postgres.
• Instrumentation:
  • MySQL2 Replay: Make query EventEmitter thenable and store rows/fields to support await usage.
  • Fetch: Minor cleanup (remove unused type import, formatting fix).
• Docs & Config:
  • Update E2E_TESTING_GUIDE.md to docker compose; add .dockerignore; extend .gitignore for E2E logs/traces.

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