[chore]: Bump github.com/jackc/pgx/v5 from 5.6.0 to 5.7.1 (#3302)

Bumps [github.com/jackc/pgx/v5](https://github.com/jackc/pgx) from 5.6.0 to 5.7.1.
- [Changelog](https://github.com/jackc/pgx/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jackc/pgx/compare/v5.6.0...v5.7.1)

---
updated-dependencies:
- dependency-name: github.com/jackc/pgx/v5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

vendor/github.com/jackc/puddle/v2/nanotime.go

@@ -0,0 +1,16 @@
+package puddle
+
+import "time"
+
+// nanotime returns the time in nanoseconds since process start.
+//
+// This approach, described at
+// https://github.com/golang/go/issues/61765#issuecomment-1672090302,
+// is fast, monotonic, and portable, and avoids the previous
+// dependence on runtime.nanotime using the (unsafe) linkname hack.
+// In particular, time.Since does less work than time.Now.
+func nanotime() int64 {
+	return time.Since(globalStart).Nanoseconds()
+}
+
+var globalStart = time.Now()