chore(deps): Upgrade openapi dep, remove replace directive (#90609)

Signed-off-by: Dave Henderson <dave.henderson@grafana.com>

pkg/codegen/generators/go_generator.go

@@ -12,8 +12,8 @@ import (
 	"cuelang.org/go/pkg/encoding/yaml"
 	"github.com/dave/dst/decorator"
 	"github.com/dave/dst/dstutil"
-	"github.com/deepmap/oapi-codegen/v2/pkg/codegen"
 	"github.com/getkin/kin-openapi/openapi3"
+	"github.com/oapi-codegen/oapi-codegen/v2/pkg/codegen"
 	"golang.org/x/tools/imports"
 )