Update pg_query_go to 2.2.0 / libpg_query to 13-2.2.0

Amongst other improvements, this fixes build problems on macOS caused
by a recent XCode Command Line release, see
pganalyze/pg_query#263 and
postgres/postgres@bc7a40b.

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/jinzhu/inflection v1.0.0
 	github.com/lib/pq v1.10.7
 	github.com/mattn/go-sqlite3 v1.14.15
-	github.com/pganalyze/pg_query_go/v2 v2.1.2
+	github.com/pganalyze/pg_query_go/v2 v2.2.0
 	github.com/spf13/cobra v1.6.0
 	github.com/spf13/pflag v1.0.5
 	google.golang.org/protobuf v1.28.1

go.sum

@@ -115,8 +115,8 @@ github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Ky
 github.com/mattn/go-sqlite3 v1.14.15 h1:vfoHhTN1af61xCRSWzFIWzx2YskyMTwHLrExkBOjvxI=
 github.com/mattn/go-sqlite3 v1.14.15/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
-github.com/pganalyze/pg_query_go/v2 v2.1.2 h1:LiNm3WoBV/cc144X6jlVKD5DPL+fI2wfvCXT7z25B8U=
-github.com/pganalyze/pg_query_go/v2 v2.1.2/go.mod h1:XAxmVqz1tEGqizcQ3YSdN90vCOHBWjJi8URL1er5+cA=
+github.com/pganalyze/pg_query_go/v2 v2.2.0 h1:OW+reH+ZY7jdEuPyuLGlf1m7dLbE+fDudKXhLs0Ttpk=
+github.com/pganalyze/pg_query_go/v2 v2.2.0/go.mod h1:XAxmVqz1tEGqizcQ3YSdN90vCOHBWjJi8URL1er5+cA=
 github.com/pingcap/errors v0.11.0/go.mod h1:Oi8TUi2kEtXXLMJk9l1cGmz20kV3TaQ0usTwv5KuLY8=
 github.com/pingcap/errors v0.11.5-0.20210425183316-da1aaba5fb63 h1:+FZIDR/D97YOPik4N4lPDaUcLDF/EQPogxtlHB2ZZRM=
 github.com/pingcap/errors v0.11.5-0.20210425183316-da1aaba5fb63/go.mod h1:X2r9ueLEUZgtx2cIogM0v4Zj5uvvzhuuiu7Pn8HzMPg=