Fix go.mod gomega

When we ran Ginkgo v2 tests for the first time we got the following
error:

```
  go install github.com/onsi/ginkgo/v2/ginkgo
  go install github.com/onsi/gomega/matchers
  shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
go: downloading github.com/onsi/ginkgo/v2 v2.15.0
go: downloading github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572
go: downloading golang.org/x/tools v0.17.0
go: downloading github.com/google/pprof v0.0.0-20230912144702-c363fe2c2ed8
missing go.sum entry for module providing package github.com/onsi/gomega/matchers; to add:
	go mod download github.com/onsi/gomega
Error: Process completed with exit code 1.
```

Author: a-b

go.sum

@@ -207,6 +207,8 @@ github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1y
 github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
 github.com/onsi/gomega v1.19.0/go.mod h1:LY+I3pBVzYsTBU1AnDwOSxaYi9WoWiqgwooUqq9yPro=
 github.com/onsi/gomega v1.20.0/go.mod h1:DtrZpjmvpn2mPm4YWQa0/ALMDj9v4YxLgojwPeREyVo=
+github.com/onsi/gomega v1.31.1 h1:KYppCUK+bUgAZwHOu7EXVBKyQA6ILvOESHkn/tgoqvo=
+github.com/onsi/gomega v1.31.1/go.mod h1:y40C95dwAD1Nz36SsEnxvfFe8FFfNxzI5eJ0EYGyAy0=
 github.com/onsi/gomega v1.32.0 h1:JRYU78fJ1LPxlckP6Txi/EYqJvjtMrDC04/MM5XRHPk=
 github.com/onsi/gomega v1.32.0/go.mod h1:a4x4gW6Pz2yK1MAmvluYme5lvYTn61afQ2ETw/8n4Lg=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=