chore(deps): bump github.com/lestrrat-go/jwx/v2 in /backend

Bumps [github.com/lestrrat-go/jwx/v2](https://github.com/lestrrat-go/jwx) from 2.0.14 to 2.0.15.
- [Release notes](https://github.com/lestrrat-go/jwx/releases)
- [Changelog](https://github.com/lestrrat-go/jwx/blob/develop/v2/Changes)
- [Commits](lestrrat-go/jwx@v2.0.14...v2.0.15)

---
updated-dependencies:
- dependency-name: github.com/lestrrat-go/jwx/v2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

backend/go.mod

@@ -24,7 +24,7 @@ require (
 	github.com/labstack/echo-contrib v0.15.0
 	github.com/labstack/echo-jwt/v4 v4.2.0
 	github.com/labstack/echo/v4 v4.11.2
-	github.com/lestrrat-go/jwx/v2 v2.0.14
+	github.com/lestrrat-go/jwx/v2 v2.0.15
 	github.com/lib/pq v1.10.9
 	github.com/nicksnyder/go-i18n/v2 v2.2.1
 	github.com/ory/dockertest/v3 v3.10.0

backend/go.sum

@@ -403,8 +403,8 @@ github.com/lestrrat-go/httprc v1.0.4 h1:bAZymwoZQb+Oq8MEbyipag7iSq6YIga8Wj6GOiJG
 github.com/lestrrat-go/httprc v1.0.4/go.mod h1:mwwz3JMTPBjHUkkDv/IGJ39aALInZLrhBp0X7KGUZlo=
 github.com/lestrrat-go/iter v1.0.2 h1:gMXo1q4c2pHmC3dn8LzRhJfP1ceCbgSiT9lUydIzltI=
 github.com/lestrrat-go/iter v1.0.2/go.mod h1:Momfcq3AnRlRjI5b5O8/G5/BvpzrhoFTZcn06fEOPt4=
-github.com/lestrrat-go/jwx/v2 v2.0.14 h1:qm02Xd/pIWSv70vVEutr3Zt7QULnnNRpM4N5+8hQBFs=
-github.com/lestrrat-go/jwx/v2 v2.0.14/go.mod h1:jBHyESp4e7QxfERM0UKkQ80/94paqNIEcdEfiUYz5zE=
+github.com/lestrrat-go/jwx/v2 v2.0.15 h1:XvR2lQdX+mZechmqWxqQb2foU3hgAn5+Rj0ICa0I6sU=
+github.com/lestrrat-go/jwx/v2 v2.0.15/go.mod h1:jBHyESp4e7QxfERM0UKkQ80/94paqNIEcdEfiUYz5zE=
 github.com/lestrrat-go/option v1.0.0/go.mod h1:5ZHFbivi4xwXxhxY9XHDe2FHo6/Z7WWmtT7T5nBBp3I=
 github.com/lestrrat-go/option v1.0.1 h1:oAzP2fvZGQKWkvHa1/SAcFolBEca1oN+mQ7eooNBEYU=
 github.com/lestrrat-go/option v1.0.1/go.mod h1:5ZHFbivi4xwXxhxY9XHDe2FHo6/Z7WWmtT7T5nBBp3I=