[chore]: Bump github.com/jackc/pgx/v5 from 5.3.1 to 5.4.1 (#1907)

Bumps [github.com/jackc/pgx/v5](https://github.com/jackc/pgx) from 5.3.1 to 5.4.1.
- [Changelog](https://github.com/jackc/pgx/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jackc/pgx/compare/v5.3.1...v5.4.1)

---
updated-dependencies:
- dependency-name: github.com/jackc/pgx/v5
  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/v5/tx.go

@@ -44,6 +44,10 @@ type TxOptions struct {
 	IsoLevel       TxIsoLevel
 	AccessMode     TxAccessMode
 	DeferrableMode TxDeferrableMode
+
+	// BeginQuery is the SQL query that will be executed to begin the transaction. This allows using non-standard syntax
+	// such as BEGIN PRIORITY HIGH with CockroachDB. If set this will override the other settings.
+	BeginQuery string
 }
 
 var emptyTxOptions TxOptions
@@ -53,6 +57,10 @@ func (txOptions TxOptions) beginSQL() string {
 		return "begin"
 	}
 
+	if txOptions.BeginQuery != "" {
+		return txOptions.BeginQuery
+	}
+
 	var buf strings.Builder
 	buf.Grow(64) // 64 - maximum length of string with available options
 	buf.WriteString("begin")