Update azure azure-sdk-for-net monorepo to 4.8.0

[thomhurst]

This PR contains the following updates:

Package	Type	Update	Change
Azure.Security.KeyVault.Certificates (source)	nuget	minor	4.7.0 -> 4.8.0
Azure.Security.KeyVault.Secrets (source)	nuget	minor	4.7.0 -> 4.8.0

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Release Notes

Azure/azure-sdk-for-net (Azure.Security.KeyVault.Certificates)

v4.8.0

Compare Source

4.8.0 (2025-06-16)

Acknowledgments

Thank you to our developer community members who helped to make the Key Vault client libraries better with their contributions to this release:

• James Gould (GitHub)

Bugs Fixed

• Removed additional forward slash in RestoreCertificateBackup and RestoreCertificateBackupAsync.

Other Changes

• The default service version is now "7.6".

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Configuration

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This PR has been generated by Renovate Bot.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.77%. Comparing base (cc6f812) to head (fdc2212).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1135   +/-   ##
=======================================
  Coverage   80.77%   80.77%           
=======================================
  Files         215      215           
  Lines        4042     4042           
  Branches      497      497           
=======================================
  Hits         3265     3265           
  Misses        651      651           
  Partials      126      126           

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