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/dlclark/regexp2/runner.go

@@ -566,22 +566,9 @@ func (r *runner) execute() error {
 			continue
 
 		case syntax.EndZ:
-			rchars := r.rightchars()
-			if rchars > 1 {
+			if r.rightchars() > 1 || r.rightchars() == 1 && r.charAt(r.textPos()) != '\n' {
 				break
 			}
-			// RE2 and EcmaScript define $ as "asserts position at the end of the string"
-			// PCRE/.NET adds "or before the line terminator right at the end of the string (if any)"
-			if (r.re.options & (RE2 | ECMAScript)) != 0 {
-				// RE2/Ecmascript mode
-				if rchars > 0 {
-					break
-				}
-			} else if rchars == 1 && r.charAt(r.textPos()) != '\n' {
-				// "regular" mode
-				break
-			}
-
 			r.advance(0)
 			continue
 
@@ -951,8 +938,8 @@ func (r *runner) advance(i int) {
 }
 
 func (r *runner) goTo(newpos int) {
-	// when branching backward or in place, ensure storage
-	if newpos <= r.codepos {
+	// when branching backward, ensure storage
+	if newpos < r.codepos {
 		r.ensureStorage()
 	}