chore: Remove distributions/** from integration, external provider, and unit tests (#2018)

# What does this PR do?
Remove `distributions/**` from integration, external provider, and unit
tests

[//]: # (If resolving an issue, uncomment and update the line below)
[//]: # (Closes #[issue-number])

## Test Plan
N/A

[//]: # (## Documentation)

Signed-off-by: Francisco Javier Arceo <farceo@redhat.com>

.github/workflows/integration-tests.yml

@@ -6,7 +6,6 @@ on:
   pull_request:
     branches: [ main ]
     paths:
-      - 'distributions/**'
       - 'llama_stack/**'
       - 'tests/integration/**'
       - 'uv.lock'

.github/workflows/test-external-providers.yml

@@ -6,7 +6,6 @@ on:
   pull_request:
     branches: [ main ]
     paths:
-      - 'distributions/**'
       - 'llama_stack/**'
       - 'tests/integration/**'
       - 'uv.lock'

.github/workflows/unit-tests.yml

@@ -6,7 +6,6 @@ on:
   pull_request:
     branches: [ main ]
     paths:
-      - 'distributions/**'
       - 'llama_stack/**'
       - 'tests/unit/**'
       - 'uv.lock'