Bump github.com/go-playground/validator/v10 in /cmd/mdatagen (#3135)

Bumps [github.com/go-playground/validator/v10](https://github.com/go-playground/validator) from 10.5.0 to 10.6.0.
- [Release notes](https://github.com/go-playground/validator/releases)
- [Commits](go-playground/validator@v10.5.0...v10.6.0)

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

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

cmd/mdatagen/go.mod

@@ -5,7 +5,7 @@ go 1.16
 require (
  github.com/go-playground/locales v0.13.0
  github.com/go-playground/universal-translator v0.17.0
- github.com/go-playground/validator/v10 v10.5.0
+ github.com/go-playground/validator/v10 v10.6.0
  github.com/stretchr/testify v1.7.0
  gopkg.in/yaml.v2 v2.4.0
 )

cmd/mdatagen/go.sum

@@ -6,8 +6,8 @@ github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8c
 github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
 github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD876Lmtgy7VtROAbHHXk8no=
 github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
-github.com/go-playground/validator/v10 v10.5.0 h1:X9rflw/KmpACwT8zdrm1upefpvdy6ur8d1kWyq6sg3E=
-github.com/go-playground/validator/v10 v10.5.0/go.mod h1:xm76BBt941f7yWdGnI2DVPFFg1UK3YY04qifoXU3lOk=
+github.com/go-playground/validator/v10 v10.6.0 h1:UGIt4xR++fD9QrBOoo/ascJfGe3AGHEB9s6COnss4Rk=
+github.com/go-playground/validator/v10 v10.6.0/go.mod h1:xm76BBt941f7yWdGnI2DVPFFg1UK3YY04qifoXU3lOk=
 github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
 github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=