Align java25 runtime support and runtime docs

[GrahamCampbell]

• Add java25 to the AWS runtime schema so validation matches existing typings and invoke-local support
• Add regression tests to keep runtime enums in sync and cover java25 across provider, function, layer, and Java invoke-local paths
• Update stale runtime docs for invoke local, SnapStart, and Lambda@Edge to avoid drift and incorrect recommendations

[Copilot]

Pull request overview

Aligns AWS runtime validation, typings, invoke-local behavior, and docs by adding java25 support and preventing future drift between runtime enums.

Changes:

• Add java25 to the AWS provider runtime schema.
• Add unit tests covering java25 for provider/function/layer config and Java invoke local, plus a new “schema parity” regression test.
• Update docs for SnapStart, invoke local, and Lambda@Edge runtime guidance to avoid stale recommendations.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/unit/lib/plugins/aws/provider.test.js	Adds a regression test to keep provider runtime schema and TS runtime union type in sync.
test/unit/lib/plugins/aws/package/compile/layers.test.js	Adds packaging test that layers[].compatibleRuntimes accepts java25.
test/unit/lib/plugins/aws/package/compile/functions.test.js	Adds packaging tests that provider.runtime and functions[].runtime accept java25.
test/unit/lib/plugins/aws/invoke-local/index.test.js	Expands Java runtime coverage (including java25) and adds explicit Java handler method parsing test.
lib/plugins/aws/provider.js	Adds java25 to awsLambdaRuntime enum.
docs/guides/serverless.yml.md	Updates SnapStart comment to avoid runtime-specific/stale wording.
docs/guides/functions.md	Updates SnapStart section to defer to AWS docs for current support/limitations.
docs/events/cloudfront.md	Replaces hard-coded Lambda@Edge runtime/size limits with AWS-doc-referenced guidance.
docs/cli-reference/invoke.md	Clarifies that only certain runtimes run natively; others use Docker.

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[Copilot]

Pull request overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated 1 comment.

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[Copilot]

Pull request overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated no new comments.

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