Microsoft Compliance Partner backend changes (#29540)

For #27042.

Ready for review, just missing integration tests that I will be writing
today.

- [X] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
- [X] Input data is properly validated, `SELECT *` is avoided, SQL
injection is prevented (using placeholders for values in statements)
- [ ] Added support on fleet's osquery simulator `cmd/osquery-perf` for
new osquery data ingestion features.
- [X] If database migrations are included, checked table schema to
confirm autoupdate
- For new Fleet configuration settings
- [X] Verified that the setting can be managed via GitOps, or confirmed
that the setting is explicitly being excluded from GitOps. If managing
via Gitops:
- [X] Verified that the setting is exported via `fleetctl
generate-gitops`
- [X] Added the setting to [the GitOps
documentation](https://github.com/fleetdm/fleet/blob/main/docs/Configuration/yaml-files.md#L485)
- [X] Verified that the setting is cleared on the server if it is not
supplied in a YAML file (or that it is documented as being optional)
- [x] Verified that any relevant UI is disabled when GitOps mode is
enabled
- For database migrations:
- [X] Checked schema for all modified table for columns that will
auto-update timestamps during migration.
- [X] Confirmed that updating the timestamps is acceptable, and will not
cause unwanted side effects.
- [X] Ensured the correct collation is explicitly set for character
columns (`COLLATE utf8mb4_unicode_ci`).
- [x] Added/updated automated tests
- [X] Manual QA for all new/changed functionality

---------

Co-authored-by: jacobshandling <61553566+jacobshandling@users.noreply.github.com>
Co-authored-by: Jacob Shandling <jacob@fleetdm.com>

webpack.config.js

@@ -27,9 +27,6 @@ let plugins = [
   new webpack.DefinePlugin({
     featureFlags: {
       // e.g.: allowGitOpsMode: JSON.stringify(process.env.ALLOW_GITOPS_MODE),
-      allowConditionalAccess: JSON.stringify(
-        process.env.ALLOW_CONDITIONAL_ACCESS
-      ),
     },
   }),
 ];