Revert "Upgrade to go 1.19 and update dependencies (#3069)" (#3085)

This reverts commit bba7c23957.

vendor/github.com/golang-migrate/migrate/v4/source/file/file.go

@@ -6,34 +6,12 @@ import (
 	"path/filepath"
 
 	"github.com/golang-migrate/migrate/v4/source"
-	"github.com/golang-migrate/migrate/v4/source/iofs"
 )
 
 func init() {
 	source.Register("file", &File{})
 }
 
-type File struct {
-	iofs.PartialDriver
-	url  string
-	path string
-}
-
-func (f *File) Open(url string) (source.Driver, error) {
-	p, err := parseURL(url)
-	if err != nil {
-		return nil, err
-	}
-	nf := &File{
-		url:  url,
-		path: p,
-	}
-	if err := nf.Init(os.DirFS(p), "."); err != nil {
-		return nil, err
-	}
-	return nf, nil
-}
-
 func parseURL(url string) (string, error) {
 	u, err := nurl.Parse(url)
 	if err != nil {

vendor/github.com/golang-migrate/migrate/v4/source/file/file_go115.go

@@ -0,0 +1,32 @@
+// +build !go1.16
+
+package file
+
+import (
+	"net/http"
+
+	"github.com/golang-migrate/migrate/v4/source"
+	"github.com/golang-migrate/migrate/v4/source/httpfs"
+)
+
+type File struct {
+	httpfs.PartialDriver
+	url  string
+	path string
+}
+
+func (f *File) Open(url string) (source.Driver, error) {
+	p, err := parseURL(url)
+	if err != nil {
+		return nil, err
+	}
+
+	nf := &File{
+		url:  url,
+		path: p,
+	}
+	if err := nf.Init(http.Dir(p), ""); err != nil {
+		return nil, err
+	}
+	return nf, nil
+}

vendor/github.com/golang-migrate/migrate/v4/source/file/file_go116.go

@@ -0,0 +1,31 @@
+// +build go1.16
+
+package file
+
+import (
+	"os"
+
+	"github.com/golang-migrate/migrate/v4/source"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+)
+
+type File struct {
+	iofs.PartialDriver
+	url  string
+	path string
+}
+
+func (f *File) Open(url string) (source.Driver, error) {
+	p, err := parseURL(url)
+	if err != nil {
+		return nil, err
+	}
+	nf := &File{
+		url:  url,
+		path: p,
+	}
+	if err := nf.Init(os.DirFS(p), "."); err != nil {
+		return nil, err
+	}
+	return nf, nil
+}