Bump github.com/pomerium/pomerium from 0.18.0 to 0.21.3 (#12)

Bumps [github.com/pomerium/pomerium](https://github.com/pomerium/pomerium) from 0.18.0 to 0.21.3.
- [Release notes](https://github.com/pomerium/pomerium/releases)
- [Commits](pomerium/pomerium@v0.18.0...v0.21.3)

---
updated-dependencies:
- dependency-name: github.com/pomerium/pomerium
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -5,45 +5,44 @@ go 1.20
 require (
  github.com/envoyproxy/go-control-plane v0.11.0
  github.com/envoyproxy/protoc-gen-validate v0.10.1
- github.com/pomerium/pomerium v0.18.0
+ github.com/pomerium/pomerium v0.21.3
  github.com/stretchr/testify v1.8.1
  google.golang.org/grpc v1.52.0
  google.golang.org/protobuf v1.30.0
 )
 
 require (
- github.com/caddyserver/certmagic v0.16.0 // indirect
- github.com/cenkalti/backoff/v4 v4.1.3 // indirect
+ github.com/caddyserver/certmagic v0.17.2 // indirect
+ github.com/cenkalti/backoff/v4 v4.2.0 // indirect
  github.com/cncf/xds/go v0.0.0-20220314180256-7f1daf1720fc // indirect
  github.com/davecgh/go-spew v1.1.1 // indirect
  github.com/go-jose/go-jose/v3 v3.0.0 // indirect
  github.com/golang/protobuf v1.5.2 // indirect
  github.com/google/uuid v1.3.0 // indirect
  github.com/hashicorp/errwrap v1.1.0 // indirect
  github.com/hashicorp/go-multierror v1.1.1 // indirect
- github.com/hashicorp/golang-lru v0.5.4 // indirect
- github.com/klauspost/cpuid/v2 v2.0.11 // indirect
- github.com/kr/text v0.2.0 // indirect
+ github.com/hashicorp/golang-lru/v2 v2.0.1 // indirect
+ github.com/klauspost/cpuid/v2 v2.1.1 // indirect
+ github.com/kr/pretty v0.3.0 // indirect
  github.com/libdns/libdns v0.2.1 // indirect
  github.com/mattn/go-colorable v0.1.13 // indirect
  github.com/mattn/go-isatty v0.0.16 // indirect
- github.com/mholt/acmez v1.0.3 // indirect
- github.com/miekg/dns v1.1.46 // indirect
- github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
+ github.com/mholt/acmez v1.0.4 // indirect
+ github.com/miekg/dns v1.1.50 // indirect
  github.com/pmezard/go-difflib v1.0.0 // indirect
- github.com/rs/zerolog v1.27.0 // indirect
- github.com/sirupsen/logrus v1.9.0 // indirect
+ github.com/rogpeppe/go-internal v1.9.0 // indirect
+ github.com/rs/zerolog v1.28.0 // indirect
  go.uber.org/atomic v1.10.0 // indirect
  go.uber.org/multierr v1.8.0 // indirect
- go.uber.org/zap v1.23.0 // indirect
- golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa // indirect
+ go.uber.org/zap v1.24.0 // indirect
+ golang.org/x/crypto v0.5.0 // indirect
  golang.org/x/mod v0.9.0 // indirect
  golang.org/x/net v0.8.0 // indirect
  golang.org/x/sync v0.1.0 // indirect
  golang.org/x/sys v0.6.0 // indirect
  golang.org/x/text v0.8.0 // indirect
  golang.org/x/tools v0.7.0 // indirect
- google.golang.org/genproto v0.0.0-20221118155620-16455021b5e6 // indirect
- gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
+ google.golang.org/genproto v0.0.0-20221227171554-f9683d7f8bef // indirect
+ gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
  gopkg.in/yaml.v3 v3.0.1 // indirect
 )