Bumps the go_modules group in /test/src with 8 updates:

| Package | From | To |
| --- | --- | --- |
| [github.com/hashicorp/go-getter](https://github.com/hashicorp/go-getter) | `1.5.9` | `1.7.5` |
| [golang.org/x/crypto](https://github.com/golang/crypto) | `0.0.0-20210513164829-c07d793c2f9a` | `0.0.0-20210921155107-089bfa567519` |
| [golang.org/x/net](https://github.com/golang/net) | `0.0.0-20210614182718-04defd469f4e` | `0.1.0` |
| [golang.org/x/sys](https://github.com/golang/sys) | `0.0.0-20210603125802-9665404d3644` | `0.1.0` |
| [golang.org/x/text](https://github.com/golang/text) | `0.3.6` | `0.4.0` |
| [google.golang.org/grpc](https://github.com/grpc/grpc-go) | `1.38.0` | `1.50.1` |
| google.golang.org/protobuf | `1.26.0` | `1.28.1` |
| gopkg.in/yaml.v3 | `3.0.0-20210107192922-496545a6307b` | `3.0.0` |


Updates `github.com/hashicorp/go-getter` from 1.5.9 to 1.7.5
- [Release notes](https://github.com/hashicorp/go-getter/releases)
- [Changelog](https://github.com/hashicorp/go-getter/blob/main/.goreleaser.yml)
- [Commits](hashicorp/go-getter@v1.5.9...v1.7.5)

Updates `golang.org/x/crypto` from 0.0.0-20210513164829-c07d793c2f9a to 0.0.0-20210921155107-089bfa567519
- [Commits](https://github.com/golang/crypto/commits)

Updates `golang.org/x/net` from 0.0.0-20210614182718-04defd469f4e to 0.1.0
- [Commits](https://github.com/golang/net/commits/v0.1.0)

Updates `golang.org/x/sys` from 0.0.0-20210603125802-9665404d3644 to 0.1.0
- [Commits](https://github.com/golang/sys/commits/v0.1.0)

Updates `golang.org/x/text` from 0.3.6 to 0.4.0
- [Release notes](https://github.com/golang/text/releases)
- [Commits](golang/text@v0.3.6...v0.4.0)

Updates `google.golang.org/grpc` from 1.38.0 to 1.50.1
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.38.0...v1.50.1)

Updates `google.golang.org/protobuf` from 1.26.0 to 1.28.1

Updates `gopkg.in/yaml.v3` from 3.0.0-20210107192922-496545a6307b to 3.0.0

---
updated-dependencies:
- dependency-name: github.com/hashicorp/go-getter
  dependency-type: indirect
  dependency-group: go_modules
- dependency-name: golang.org/x/crypto
  dependency-type: indirect
  dependency-group: go_modules
- dependency-name: golang.org/x/net
  dependency-type: indirect
  dependency-group: go_modules
- dependency-name: golang.org/x/sys
  dependency-type: indirect
  dependency-group: go_modules
- dependency-name: golang.org/x/text
  dependency-type: indirect
  dependency-group: go_modules
- dependency-name: google.golang.org/grpc
  dependency-type: indirect
  dependency-group: go_modules
- dependency-name: google.golang.org/protobuf
  dependency-type: indirect
  dependency-group: go_modules
- dependency-name: gopkg.in/yaml.v3
  dependency-type: indirect
  dependency-group: go_modules
...

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

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