Bump golang.org/x/crypto from 0.30.0 to 0.31.0 in /webapp/go

Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.30.0 to 0.31.0.
- [Commits](golang/crypto@v0.30.0...v0.31.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

webapp/go/go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/gorilla/securecookie v1.1.2
 	github.com/gorilla/sessions v1.4.0
 	github.com/jmoiron/sqlx v1.4.0
-	golang.org/x/crypto v0.30.0
+	golang.org/x/crypto v0.31.0
 )
 
 require filippo.io/edwards25519 v1.1.0 // indirect

webapp/go/go.sum

@@ -16,5 +16,5 @@ github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o4kU=
 github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
-golang.org/x/crypto v0.30.0 h1:RwoQn3GkWiMkzlX562cLB7OxWvjH1L8xutO2WoJcRoY=
-golang.org/x/crypto v0.30.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=