CDK for Go requires bash

[davemackintosh]

Bundling of Go code doesn't work without bash as required by the CDK.

[davemackintosh]

It fixes this error I get in my Github actions since I switched back to this release channel. Error: spawnSync bash ENOENT

go: downloading github.com/Masterminds/semver/v3 v3.2.1
go: downloading github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.10.5
Bundling asset auth/create-user-from-cognito/Code/Stage...
panic: Failed to bundle asset auth/create-user-from-cognito/Code/Stage, bundle output is located at /github/workspace/cdk.out/bundling-temp-5ddc6744cceac05b114e1c52e[50](https://github.com/sale-nook/backend/actions/runs/7861034937/job/21448903462#step:8:51)ce54f0fcff1d63ed19a47186b212c603658db-error: Error: spawnSync bash ENOENT

goroutine 1 [running]:
github.com/aws/jsii-runtime-go/runtime.Create({0x142fcf7, 0x27}, {0xc00043b710, 0x3, 0x3}, {0x13c0460, 0xc00041eb90})
	/go/pkg/mod/github.com/aws/[email protected]/runtime/runtime.go:202 +0xd3a

[ScottBrenner]

Thanks, released in https://github.com/ScottBrenner/aws-cdk-action/releases/tag/v1.6.1.