Peter Bendel f9fdbc9618 remove auth_endpoint password from log and command line for local proxy mode (#11991) ...

## Problem

When testing local proxy the auth-endpoint password shows up in command
line and log

```bash
RUST_LOG=proxy LOGFMT=text cargo run --release --package proxy --bin proxy --features testing -- \
  --auth-backend postgres \
  --auth-endpoint 'postgresql://postgres:secret_password@127.0.0.1:5432/postgres' \
  --tls-cert server.crt \
  --tls-key server.key \
  --wss 0.0.0.0:4444
```

## Summary of changes

- Allow to set env variable PGPASSWORD
- fall back to use PGPASSWORD env variable when auth-endpoint does not
contain password
- remove auth-endpoint password from logs in `--features testing` mode

Example

```bash
export PGPASSWORD=secret_password

RUST_LOG=proxy LOGFMT=text cargo run --package proxy --bin proxy --features testing -- \
  --auth-backend postgres \
  --auth-endpoint 'postgresql://postgres@127.0.0.1:5432/postgres' \
  --tls-cert server.crt \
  --tls-key server.key \
  --wss 0.0.0.0:4444 
```

2025-05-21 20:26:05 +00:00

..

backend

remove auth_endpoint password from log and command line for local proxy mode (#11991)

2025-05-21 20:26:05 +00:00

credentials.rs

feat(proxy): track SNI usage by protocol, including for http (#11863)

2025-05-08 16:46:57 +00:00

flow.rs

chore(proxy): pre-load native tls certificates and propagate compute client config (#10182)

2025-01-02 09:36:13 +00:00

mod.rs

Upgrade proxy crates to edition 2024 (#10942)

2025-02-24 15:26:28 +00:00

password_hack.rs

proxy: clear lib.rs of code items (#9479)

2024-10-23 08:21:28 +02:00