Update Vendors (#337)

* update & migrate gitea sdk (Fix Delete Tag Issue)
* upgraded github.com/AlecAivazis/survey v2.2.7 => v2.2.8
* upgraded github.com/adrg/xdg v0.2.3 => v0.3.1
* upgraded github.com/araddon/dateparse
* upgraded github.com/olekukonko/tablewriter v0.0.4 => v0.0.5
* upgraded gopkg.in/yaml.v2 v2.3.0 => v2.4.0

Reviewed-on: https://gitea.com/gitea/tea/pulls/337
Reviewed-by: Norwin <noerw@noreply.gitea.io>
Reviewed-by: khmarbaise <khmarbaise@noreply.gitea.io>
Co-authored-by: 6543 <6543@obermui.de>
Co-committed-by: 6543 <6543@obermui.de>

vendor/github.com/AlecAivazis/survey/v2/input.go

@@ -105,7 +105,8 @@ func (i *Input) OnChange(key rune, config *PromptConfig) (bool, error) {
 		}
 	} else if key == terminal.KeyDelete || key == terminal.KeyBackspace {
 		if i.answer != "" {
-			i.answer = i.answer[0 : len(i.answer)-1]
+			runeAnswer := []rune(i.answer)
+			i.answer = string(runeAnswer[0 : len(runeAnswer)-1])
 		}
 	} else if key >= terminal.KeySpace {
 		i.answer += string(key)

vendor/github.com/AlecAivazis/survey/v2/multiselect.go

@@ -113,7 +113,8 @@ func (m *MultiSelect) OnChange(key rune, config *PromptConfig) {
 		m.filter = ""
 	} else if key == terminal.KeyDelete || key == terminal.KeyBackspace {
 		if m.filter != "" {
-			m.filter = m.filter[0 : len(m.filter)-1]
+			runeFilter := []rune(m.filter)
+			m.filter = string(runeFilter[0 : len(runeFilter)-1])
 		}
 	} else if key >= terminal.KeySpace {
 		m.filter += string(key)

vendor/github.com/AlecAivazis/survey/v2/select.go

@@ -114,8 +114,9 @@ func (s *Select) OnChange(key rune, config *PromptConfig) bool {
 	} else if key == terminal.KeyDelete || key == terminal.KeyBackspace {
 		// if there is content in the filter to delete
 		if s.filter != "" {
+			runeFilter := []rune(s.filter)
 			// subtract a line from the current filter
-			s.filter = s.filter[0 : len(s.filter)-1]
+			s.filter = string(runeFilter[0 : len(runeFilter)-1])
 			// we removed the last value in the filter
 		}
 	} else if key >= terminal.KeySpace {

vendor/github.com/AlecAivazis/survey/v2/transform.go

@@ -18,18 +18,21 @@ func TransformString(f func(s string) string) Transformer {
 	return func(ans interface{}) interface{} {
 		// if the answer value passed in is the zero value of the appropriate type
 		if isZero(reflect.ValueOf(ans)) {
-			// skip this `Transformer` by returning a nil value.
+			// skip this `Transformer` by returning a zero value of string.
 			// The original answer will be not affected,
 			// see survey.go#L125.
-			return nil
+			// A zero value of string should be returned to be handled by
+			// next Transformer in a composed Tranformer,
+			// see tranform.go#L75
+			return ""
 		}
 
 		// "ans" is never nil here, so we don't have to check that
-		// see survey.go#L97 for more.
+		// see survey.go#L338 for more.
 		// Make sure that the the answer's value was a typeof string.
 		s, ok := ans.(string)
 		if !ok {
-			return nil
+			return ""
 		}
 
 		return f(s)