[chore]: Bump github.com/jackc/pgx/v4 from 4.17.2 to 4.18.1 (#1595)

Bumps [github.com/jackc/pgx/v4](https://github.com/jackc/pgx) from 4.17.2 to 4.18.1.
- [Release notes](https://github.com/jackc/pgx/releases)
- [Changelog](https://github.com/jackc/pgx/blob/v4.18.1/CHANGELOG.md)
- [Commits](https://github.com/jackc/pgx/compare/v4.17.2...v4.18.1)

---
updated-dependencies:
- dependency-name: github.com/jackc/pgx/v4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

vendor/github.com/jackc/pgx/v4/stdlib/sql.go

@@ -84,7 +84,13 @@ func init() {
 		configs: make(map[string]*pgx.ConnConfig),
 	}
 	fakeTxConns = make(map[*pgx.Conn]*sql.Tx)
-	sql.Register("pgx", pgxDriver)
+
+	// if pgx driver was already registered by different pgx major version then we
+	// skip registration under the default name.
+	if !contains(sql.Drivers(), "pgx") {
+		sql.Register("pgx", pgxDriver)
+	}
+	sql.Register("pgx/v4", pgxDriver)
 
 	databaseSQLResultFormats = pgx.QueryResultFormatsByOID{
 		pgtype.BoolOID:        1,
@@ -103,6 +109,17 @@ func init() {
 	}
 }
 
+// TODO replace by slices.Contains when experimental package will be merged to stdlib
+// https://pkg.go.dev/golang.org/x/exp/slices#Contains
+func contains(list []string, y string) bool {
+	for _, x := range list {
+		if x == y {
+			return true
+		}
+	}
+	return false
+}
+
 var (
 	fakeTxMutex sync.Mutex
 	fakeTxConns map[*pgx.Conn]*sql.Tx