diff -r 8f478162d991 -r 05c40b36d3b2 vendor/github.com/pelletier/go-toml/keysparsing.go
--- a/vendor/github.com/pelletier/go-toml/keysparsing.go	Thu Sep 22 16:37:07 2022 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,112 +0,0 @@
-// Parsing keys handling both bare and quoted keys.
-
-package toml
-
-import (
-	"errors"
-	"fmt"
-)
-
-// Convert the bare key group string to an array.
-// The input supports double quotation and single quotation,
-// but escape sequences are not supported. Lexers must unescape them beforehand.
-func parseKey(key string) ([]string, error) {
-	runes := []rune(key)
-	var groups []string
-
-	if len(key) == 0 {
-		return nil, errors.New("empty key")
-	}
-
-	idx := 0
-	for idx < len(runes) {
-		for ; idx < len(runes) && isSpace(runes[idx]); idx++ {
-			// skip leading whitespace
-		}
-		if idx >= len(runes) {
-			break
-		}
-		r := runes[idx]
-		if isValidBareChar(r) {
-			// parse bare key
-			startIdx := idx
-			endIdx := -1
-			idx++
-			for idx < len(runes) {
-				r = runes[idx]
-				if isValidBareChar(r) {
-					idx++
-				} else if r == '.' {
-					endIdx = idx
-					break
-				} else if isSpace(r) {
-					endIdx = idx
-					for ; idx < len(runes) && isSpace(runes[idx]); idx++ {
-						// skip trailing whitespace
-					}
-					if idx < len(runes) && runes[idx] != '.' {
-						return nil, fmt.Errorf("invalid key character after whitespace: %c", runes[idx])
-					}
-					break
-				} else {
-					return nil, fmt.Errorf("invalid bare key character: %c", r)
-				}
-			}
-			if endIdx == -1 {
-				endIdx = idx
-			}
-			groups = append(groups, string(runes[startIdx:endIdx]))
-		} else if r == '\'' {
-			// parse single quoted key
-			idx++
-			startIdx := idx
-			for {
-				if idx >= len(runes) {
-					return nil, fmt.Errorf("unclosed single-quoted key")
-				}
-				r = runes[idx]
-				if r == '\'' {
-					groups = append(groups, string(runes[startIdx:idx]))
-					idx++
-					break
-				}
-				idx++
-			}
-		} else if r == '"' {
-			// parse double quoted key
-			idx++
-			startIdx := idx
-			for {
-				if idx >= len(runes) {
-					return nil, fmt.Errorf("unclosed double-quoted key")
-				}
-				r = runes[idx]
-				if r == '"' {
-					groups = append(groups, string(runes[startIdx:idx]))
-					idx++
-					break
-				}
-				idx++
-			}
-		} else if r == '.' {
-			idx++
-			if idx >= len(runes) {
-				return nil, fmt.Errorf("unexpected end of key")
-			}
-			r = runes[idx]
-			if !isValidBareChar(r) && r != '\'' && r != '"' && r != ' ' {
-				return nil, fmt.Errorf("expecting key part after dot")
-			}
-		} else {
-			return nil, fmt.Errorf("invalid key character: %c", r)
-		}
-	}
-	if len(groups) == 0 {
-		return nil, fmt.Errorf("empty key")
-	}
-	return groups, nil
-}
-
-func isValidBareChar(r rune) bool {
-	return isAlphanumeric(r) || r == '-' || isDigit(r)
-}