proxy: v2.107.0

[olix0r]

This release includes internal changes to the service discovery system,
especially when discovering control plane components (like the
destination and identity controllers). Now, the proxy attempts to
balance requests across all pods in each control plane service. This
requires control plane changes to use "headless" services so that SRV
records are exposed. When the control plane services have a clusterIP
set, the proxy falls back to using normal A-record lookups.

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• tracing: add richer verbose spans to http clients (add richer verbose spans to HTTP clients linkerd2-proxy#622)
• trace: update tracing dependencies (trace: update tracing dependencies linkerd2-proxy#623)
• Remove Resolution trait (Remove Resolution trait linkerd2-proxy#606)
• Update proxy-identity to edge-20.8.2 (Update proxy-identity to edge-20.8.2 linkerd2-proxy#627)
• Add build arg for skipping identity wrapper (Add build arg for skipping identity wrapper linkerd2-proxy#624)
• Wait for proxy thread to terminate in integration tests (Wait for proxy thread to terminate in integration tests linkerd2-proxy#625)
• Remove scrubbing for unused headers (Remove scrubbing for unused headers linkerd2-proxy#628)
• Split orig-proto tests out of discovery tests (Split orig-proto tests out of discovery tests linkerd2-proxy#629)
• Re-enable outbound timeout test (Re-enable outbound timeout test linkerd2-proxy#630)
• profiles: perform profile resolution for IP addresses (profiles: perform profile resolution for IP addresses linkerd2-proxy#626)
• Move resolve api to async-stream (Move resolve api to async-stream linkerd2-proxy#599)
• Decouple discovery buffering from endpoint conversion (Decouple discovery buffering from endpoint conversion linkerd2-proxy#631)
• resolve: Add a Reset state (resolve: Add a Reset state linkerd2-proxy#633)
• resolve: Eagerly fail resolutions (resolve: Eagerly fail resolutions linkerd2-proxy#634)
• test: replace net2 dependency with socket2 (test: replace net2 dependency with socket2 linkerd2-proxy#635)
• dns: Run DNS resolutions on the main runtime (dns: Run DNS resolutions on the main runtime linkerd2-proxy#637)
• Load balance requests to the control plane (Loadbalance requests to control plane linkerd2-proxy#594)
• Unify control plane client construction (Unify control plane client construction linkerd2-proxy#638)