[Modules] Microsoft.Network API version update

[eriqua]

Description

Closes #1729

• Updating remaining MS.Network modules still at version 2021-05-01 with latest documented in ARR 2021-08-01

Pipeline references

For module/pipeline changes, please create and attach the status badge of your successful run.

Pipeline
unrelated known issue
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Type of Change

Please delete options that are not relevant.

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Update to documentation

Checklist

• I'm sure there are no other open Pull Requests for the same update/change
• My corresponding pipelines / checks run clean and green without any errors or warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (readme)
• I did format my code

[github-actions]

Unit Test Results

    1 files      1 suites   24s ⏱️
116 tests 114 ✔️ 2 💤 0 ❌
118 runs  116 ✔️ 2 💤 0 ❌

Results for commit d88eb6d.

♻️ This comment has been updated with latest results.