[ci] add tags for other tests (#51879)

so that they will run properly on premerge

Signed-off-by: Lonnie Liu <[email protected]>

Author: aslonnie

.buildkite/others.rayci.yml

@@ -5,6 +5,7 @@ steps:
   # dependencies
   - label: ":tapioca: build: pip-compile dependencies"
     key: pip_compile_dependencies
+    tags: always
     instance_type: small
     commands:
       # uncomment the following line to update the pinned versions of pip dependencies
@@ -18,11 +19,10 @@ steps:
     soft_fail: true
     job_env: oss-ci-base_test-py3.11
     depends_on: oss-ci-base_test-multipy
-    tags:
-      - always
 
   - label: ":tapioca: build: uv pip compile LLM dependencies"
     key: uv_pip_compile_llm_dependencies
+    tags: always
     instance_type: small
     command: ./ci/test_compile_llm_requirements.sh
     job_env: oss-ci-base_test-py3.11
@@ -34,6 +34,7 @@ steps:
     depends_on: oss-ci-base_build
 
   - label: doc tests
+    tags: python
     instance_type: large
     commands:
       # Disable test DB to avoid any hidden failures going forward.