Fix Docker build for js-v2.x

[acul71]

Problem

The Docker build for js-v2.x was failing with TypeScript compilation errors:

• discoverRelays property doesn't exist in CircuitRelayTransportInit type
• TypeScript configuration incompatibilities with aegir 47.0.16

Solution

• Updated aegir from ^47.0.16 to ^47.0.22 to match js-v3.x (which builds successfully)
• Removed discoverRelays: 1 parameter from circuitRelayTransport() call - this API was removed in @libp2p/circuit-relay-v2 v3.x, relay discovery is now automatic
• Updated package-lock.json to sync with new aegir version

Changes

• transport/impls/js/v2.x/package.json - Updated aegir version
• transport/impls/js/v2.x/package-lock.json - Synced dependencies
• transport/impls/js/v2.x/test/fixtures/get-libp2p.ts - Removed deprecated discoverRelays parameter

The build now completes successfully.

[dhuseby]

Reopening due to the revert.