build(deps): bump github.com/Azure/go-autorest/autorest (#4345)

Bumps [github.com/Azure/go-autorest/autorest](https://github.com/Azure/go-autorest) from 0.11.13 to 0.11.15.
- [Release notes](https://github.com/Azure/go-autorest/releases)
- [Changelog](https://github.com/Azure/go-autorest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Azure/go-autorest/compare/autorest/v0.11.13...autorest/v0.11.15)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

go.mod

@@ -4,7 +4,7 @@ go 1.13
 
 require (
 	github.com/Azure/azure-sdk-for-go v40.6.0+incompatible
-	github.com/Azure/go-autorest/autorest v0.11.13
+	github.com/Azure/go-autorest/autorest v0.11.15
 	github.com/Azure/go-autorest/autorest/azure/auth v0.5.5
 	github.com/Azure/go-autorest/autorest/to v0.2.0 // indirect
 	github.com/DataDog/datadog-go v3.5.0+incompatible // indirect

go.sum

@@ -30,6 +30,7 @@ github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSW
 github.com/Azure/go-autorest/autorest v0.11.1/go.mod h1:JFgpikqFJ/MleTTxwepExTKnFUKKszPS8UavbQYUMuw=
 github.com/Azure/go-autorest/autorest v0.11.13 h1:XKx/sB3bfadpXBBHPc7tP2XPKhzVyrdhxpDC3T0wqjs=
 github.com/Azure/go-autorest/autorest v0.11.13/go.mod h1:eipySxLmqSyC5s5k1CLupqet0PSENBEDP93LQ9a8QYw=
+github.com/Azure/go-autorest/autorest v0.11.15/go.mod h1:eipySxLmqSyC5s5k1CLupqet0PSENBEDP93LQ9a8QYw=
 github.com/Azure/go-autorest/autorest/adal v0.9.0/go.mod h1:/c022QCutn2P7uY+/oQWWNcK9YU+MH96NgK+jErpbcg=
 github.com/Azure/go-autorest/autorest/adal v0.9.5/go.mod h1:B7KF7jKIeC9Mct5spmyCB/A8CG/sEz1vwIRGv/bbw7A=
 github.com/Azure/go-autorest/autorest/adal v0.9.8 h1:bW6ZdxqMYWsxGikpM62SSE3jnvOXVu9SXzJTuj1WM3Y=