fix(deps): update module github.com/azure/azure-sdk-for-go/sdk/azidentity to v1.8.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/Azure/azure-sdk-for-go/sdk/azidentity	v1.6.0 -> v1.8.0

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[renovate]

ℹ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 6 additional dependencies were updated

Details:

Package	Change
github.com/Azure/azure-sdk-for-go/sdk/azcore	v1.12.0 -> v1.14.0
github.com/Azure/azure-sdk-for-go/sdk/internal	v1.9.0 -> v1.10.0
golang.org/x/crypto	v0.24.0 -> v0.27.0
golang.org/x/net	v0.26.0 -> v0.29.0
golang.org/x/sys	v0.21.0 -> v0.25.0
golang.org/x/text	v0.16.0 -> v0.18.0