Added github action fix for parsing xml, updated linter

pkg/yqlib/expression_parser.go

@@ -7,8 +7,8 @@ import (
 
 type ExpressionNode struct {
 	Operation *Operation
-	Lhs       *ExpressionNode
-	Rhs       *ExpressionNode
+	LHS       *ExpressionNode
+	RHS       *ExpressionNode
 }
 
 type ExpressionParserInterface interface {
@@ -55,15 +55,15 @@ func (p *expressionParserImpl) createExpressionTree(postFixPath []*Operation) (*
 					return nil, fmt.Errorf("'%v' expects 1 arg but received none", strings.TrimSpace(Operation.StringValue))
 				}
 				remaining, rhs := stack[:len(stack)-1], stack[len(stack)-1]
-				newNode.Rhs = rhs
+				newNode.RHS = rhs
 				stack = remaining
 			} else if numArgs == 2 {
 				if len(stack) < 2 {
 					return nil, fmt.Errorf("'%v' expects 2 args but there is %v", strings.TrimSpace(Operation.StringValue), len(stack))
 				}
 				remaining, lhs, rhs := stack[:len(stack)-2], stack[len(stack)-2], stack[len(stack)-1]
-				newNode.Lhs = lhs
-				newNode.Rhs = rhs
+				newNode.LHS = lhs
+				newNode.RHS = rhs
 				stack = remaining
 			}
 		}