build(deps): update test SnakeYAML to 2.6

[jbeckwith-oai]

Summary

• constrain the Spring Boot starter's test-only transitive SnakeYAML dependency from 1.30 to 2.6
• keep Spring Boot 2.7.18 and every published dependency unchanged
• exercise Spring Boot's real YAML loader, configuration binding, and auto-configured client in a compatibility test

This addresses Dependabot alerts #1, #2, #3, #4, #5, #7, and #8. Alert #8 requires SnakeYAML 2.0 or newer.

Compatibility analysis

• Maven Central identifies 2.6 as the current stable release. Its published POM targets Java 8, its manifest requires JavaSE 1.8, and its base classes use Java 8 bytecode (class-file major version 52).
• Spring Boot added SnakeYAML 2.x loader compatibility in its 2.7.10 line; this module remains on 2.7.18. The new test verifies 2.7.18 with 2.6 by parsing YAML through YamlPropertySourceLoader, adding it to an ApplicationContextRunner, binding OpenAIClientProperties, and constructing OpenAIClient.
• The constraint exists only on testImplementation. runtimeClasspath contains no SnakeYAML, and the generated published POM contains no SnakeYAML dependency or constraint.
• Against an origin/main publication baseline, the generated POM and sources JAR are byte-identical. Every file inside the main JAR is byte-identical. Normalized Gradle module metadata has identical variants and dependencies; raw archive checksums differ only because a fresh JAR rebuild records new ZIP timestamps.
• There are no production source, public API, runtime dependency, or consumer metadata changes. This is patch-level release material and does not require a minor or major version bump.

References: SnakeYAML Maven metadata, SnakeYAML 2.6 POM, Spring Boot 2.7 compatibility fix.

Verification

• :openai-java-spring-boot-starter:dependencyInsight --configuration testRuntimeClasspath --dependency org.yaml:snakeyaml (selects 2.6)
• :openai-java-spring-boot-starter:dependencyInsight --configuration runtimeClasspath --dependency org.yaml:snakeyaml (no match)
• targeted Spring Boot YAML/config binding compatibility test
• ./scripts/lint
• ./scripts/build
• ./scripts/test (including ProGuard and R8)
• ./scripts/detect-breaking-changes origin/main
• local publication comparison against origin/main

[openai-sdks]

OkTest Summary

✅ 237/237 SDK tests passed in 16.755s for Java SDK PR #793.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	725ms
tests/chat-completions-create.test.ts	✅ Passed	559ms
tests/chat-completions-stream.test.ts	✅ Passed	343ms
tests/files-content-binary.test.ts	✅ Passed	241ms
tests/files-create-multipart.test.ts	✅ Passed	322ms
tests/files-list-pagination.test.ts	✅ Passed	258ms
tests/initialize-config.test.ts	✅ Passed	210ms
tests/instance-isolation.test.ts	✅ Passed	190ms
tests/models-list.test.ts	✅ Passed	170ms
tests/responses-background-lifecycle.test.ts	✅ Passed	307ms
tests/responses-body-method-errors.test.ts	✅ Passed	537ms
tests/responses-cancel-timeout.test.ts	✅ Passed	230ms
tests/responses-cancel.test.ts	✅ Passed	379ms
tests/responses-compact-retries.test.ts	✅ Passed	367ms
tests/responses-compact.test.ts	✅ Passed	254ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	702ms
tests/responses-create-advanced.test.ts	✅ Passed	1.381s
tests/responses-create-disconnect.test.ts	✅ Passed	1.183s
tests/responses-create-errors.test.ts	✅ Passed	356ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	344ms
tests/responses-create-retries.test.ts	✅ Passed	258ms
tests/responses-create-stream-failures.test.ts	✅ Passed	282ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	224ms
tests/responses-create-stream-wire.test.ts	✅ Passed	6.155s
tests/responses-create-stream.test.ts	✅ Passed	96ms
tests/responses-create-terminal-states.test.ts	✅ Passed	359ms
tests/responses-create-timeout.test.ts	✅ Passed	256ms
tests/responses-create.test.ts	✅ Passed	285ms
tests/responses-delete.test.ts	✅ Passed	257ms
tests/responses-input-items-errors.test.ts	✅ Passed	276ms
tests/responses-input-items-list.test.ts	✅ Passed	416ms
tests/responses-input-items-options.test.ts	✅ Passed	367ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	246ms
tests/responses-input-tokens-count.test.ts	✅ Passed	551ms
tests/responses-malformed-inputs.test.ts	✅ Passed	5.102s
tests/responses-not-found-errors.test.ts	✅ Passed	369ms
tests/responses-parse.test.ts	✅ Passed	554ms
tests/responses-retrieve-retries.test.ts	✅ Passed	937ms
tests/responses-retrieve.test.ts	✅ Passed	354ms
tests/responses-stored-method-errors.test.ts	✅ Passed	1.056s
tests/retry-behavior.test.ts	✅ Passed	3.468s
tests/sdk-error-shape.test.ts	✅ Passed	457ms

View OkTest run #29462769361

_{SDK merge (bb55ba806bc9) · head (88d9f58175c5) · base (845b2bc87fb0) · OkTest (fd7a761c81c1)}