Fix arm32v6 build (#3501)

* Downgrade gqlgen to v0.17.2

The current version of gqlgen (v0.17.24) gives SIGILL crashes on armv7.

* Update gqlparser

vendor/github.com/vektah/gqlparser/v2/parser/parser.go

@@ -10,11 +10,11 @@ import (
 
 type parser struct {
 	lexer lexer.Lexer
-	err   error
+	err   *gqlerror.Error
 
 	peeked    bool
 	peekToken lexer.Token
-	peekError error
+	peekError *gqlerror.Error
 
 	prev lexer.Token
 }