Bump github.com/spiffe/go-spiffe/v2 from 2.1.5 to 2.1.6 (#822)

Bumps [github.com/spiffe/go-spiffe/v2](https:/spiffe/go-spiffe) from 2.1.5 to 2.1.6.
- [Release notes](https:/spiffe/go-spiffe/releases)
- [Changelog](https:/spiffe/go-spiffe/blob/main/CHANGELOG.md)
- [Commits](spiffe/go-spiffe@v2.1.5...v2.1.6)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -21,7 +21,7 @@ require (
  github.com/sigstore/cosign/v2 v2.0.2
  github.com/sigstore/rekor v1.2.1
  github.com/sigstore/sigstore v1.6.4
- github.com/spiffe/go-spiffe/v2 v2.1.5
+ github.com/spiffe/go-spiffe/v2 v2.1.6
  github.com/stretchr/testify v1.8.4
  github.com/tektoncd/pipeline v0.48.0
  github.com/tektoncd/plumbing v0.0.0-20221102182345-5dbcfda657d7

go.sum

@@ -2389,8 +2389,8 @@ github.com/spf13/viper v1.8.1/go.mod h1:o0Pch8wJ9BVSWGQMbra6iw0oQ5oktSIBaujf1rJH
 github.com/spf13/viper v1.13.0/go.mod h1:Icm2xNL3/8uyh/wFuB1jI7TiTNKp8632Nwegu+zgdYw=
 github.com/spf13/viper v1.15.0 h1:js3yy885G8xwJa6iOISGFwd+qlUo5AvyXb7CiihdtiU=
 github.com/spf13/viper v1.15.0/go.mod h1:fFcTBJxvhhzSJiZy8n+PeW6t8l+KeT/uTARa0jHOQLA=
-github.com/spiffe/go-spiffe/v2 v2.1.5 h1:nFzp6pllCxpso6A2CaokdjhmH3uHWMNL9DGYXeZrShs=
-github.com/spiffe/go-spiffe/v2 v2.1.5/go.mod h1:eVDqm9xFvyqao6C+eQensb9ZPkyNEeaUbqbBpOhBnNk=
+github.com/spiffe/go-spiffe/v2 v2.1.6 h1:4SdizuQieFyL9eNU+SPiCArH4kynzaKOOj0VvM8R7Xo=
+github.com/spiffe/go-spiffe/v2 v2.1.6/go.mod h1:eVDqm9xFvyqao6C+eQensb9ZPkyNEeaUbqbBpOhBnNk=
 github.com/spiffe/spire-api-sdk v1.6.3 h1:KQVNLE3pgITsLrdzvlr3KGwXsHnDt8C6fB3T+l7gmuc=
 github.com/src-d/gcfg v1.4.0 h1:xXbNR5AlLSA315x2UO+fTSSAXCDf+Ar38/6oyGbDKQ4=
 github.com/src-d/gcfg v1.4.0/go.mod h1:p/UMsR43ujA89BJY9duynAwIpvqEujIH/jFlfL7jWoI=