build(deps): bump github.com/ettle/strcase in /tools/mod

Bumps [github.com/ettle/strcase](https://github.com/ettle/strcase) from 0.1.1 to 0.2.0.
- [Release notes](https://github.com/ettle/strcase/releases)
- [Commits](https://github.com/ettle/strcase/compare/v0.1.1...v0.2.0)

---
updated-dependencies:
- dependency-name: github.com/ettle/strcase
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

tools/mod/go.mod

@@ -68,7 +68,7 @@ require (
 	github.com/dnephin/pflag v1.0.7 // indirect
 	github.com/elliotchance/orderedmap v1.5.1 // indirect
 	github.com/esimonov/ifshort v1.0.4 // indirect
-	github.com/ettle/strcase v0.1.1 // indirect
+	github.com/ettle/strcase v0.2.0 // indirect
 	github.com/fatih/color v1.16.0 // indirect
 	github.com/fatih/structtag v1.2.0 // indirect
 	github.com/firefart/nonamedreturns v1.0.4 // indirect

tools/mod/go.sum

@@ -172,8 +172,8 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.m
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/esimonov/ifshort v1.0.4 h1:6SID4yGWfRae/M7hkVDVVyppy8q/v9OuxNdmjLQStBA=
 github.com/esimonov/ifshort v1.0.4/go.mod h1:Pe8zjlRrJ80+q2CxHLfEOfTwxCZ4O+MuhcHcfgNWTk0=
-github.com/ettle/strcase v0.1.1 h1:htFueZyVeE1XNnMEfbqp5r67qAN/4r6ya1ysq8Q+Zcw=
-github.com/ettle/strcase v0.1.1/go.mod h1:hzDLsPC7/lwKyBOywSHEP89nt2pDgdy+No1NBA9o9VY=
+github.com/ettle/strcase v0.2.0 h1:fGNiVF21fHXpX1niBgk0aROov1LagYsOwV/xqKDKR/Q=
+github.com/ettle/strcase v0.2.0/go.mod h1:DajmHElDSaX76ITe3/VHVyMin4LWSJN5Z909Wp+ED1A=
 github.com/fatih/color v1.15.0/go.mod h1:0h5ZqXfHYED7Bhv2ZJamyIOUej9KtShiJESRwBDUSsw=
 github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
 github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=