PHPLIB-1930 test server 9.0

[kevinAlbs]

Summary

• Add server 9.0 to test matrix.
• Bump drivers-evergreen-tools to include changes to test the 9.0 branch mongodb-labs/drivers-evergreen-tools@890a93b

Motivation

This was an urgent ask to ensure 9.0 has test coverage.

Evergreen patch: https://spruce.corp.mongodb.com/version/6a7e0e3822cd030007b24174/. Failures of testResumeAfterOption (example) are also failing against latest servers.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[Copilot]

Pull request overview

Updates Evergreen’s generated configuration so MongoDB Server 9.0 is treated as a supported test target across the existing task groups and PHP build variants, ensuring it participates in the CI matrix where appropriate (and is excluded from variants intended for older server ranges).

Changes:

• Added 9.0 to the supported MongoDB version list used by the config generator.
• Generated new 9.0 Evergreen test tasks for local, load-balanced, CSFLE, and versioned API testing.
• Updated modern PHP “full” test variants to exclude 9.0 from variants meant to cover only older server versions, leaving 9.0 coverage in the “MongoDB >= 7.0” variants.

Reviewed changes

Copilot reviewed 3 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
.evergreen/config/templates/test-variant/modern-php-full.yml	Excludes 9.0 from older-version variant selectors so it runs in the intended (>=7.0) variants.
.evergreen/config/generated/test/require-api-version.yml	Adds 9.0 requireApiVersion + acceptApiVersion2 tasks.
.evergreen/config/generated/test/local.yml	Adds 9.0 local topology tasks (standalone/replicaset/sharded).
.evergreen/config/generated/test/load-balanced.yml	Adds 9.0 load-balanced task.
.evergreen/config/generated/test/csfle.yml	Adds 9.0 CSFLE task set (crypt_shared/mongocryptd/no-aws-creds).
.evergreen/config/generated/test-variant/modern-php-full.yml	Propagates template selector updates into generated buildvariants for supported PHP versions.
.evergreen/config/generate-config.php	Adds 9.0 into the supported MongoDB versions list used for config generation.

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[GromNaN]

We should also update the GitHub Action matrix to run on MongoDB Server 9. This can be done in a distinct PR since tests pass on evergreen on this PR.

[kevinAlbs]

update the GitHub Action matrix

Updated in #1954