[CI] Remove dependency on devops/scripts/benchmarks/** from IGC dev containers workflow (#18732)

The dependency on devops/scripts/** causes any changes in
devops/scripts/benchmarks/** (unrelated to IGC dev containers) to fail
as well: exclude this path.

Author: ianayl

.github/workflows/sycl-containers-igc-dev.yaml

@@ -7,12 +7,14 @@ on:
     paths:
       - 'devops/actions/build_container/**'
       - 'devops/scripts/**'
+      - '!devops/scripts/benchmarks/**'
       - 'devops/dependencies-igc-dev.json'
       - '.github/workflows/sycl-containers-igc-dev.yaml'
   pull_request:
     paths:
       - 'devops/actions/build_container/**'
       - 'devops/scripts/**'
+      - '!devops/scripts/benchmarks/**'
       - 'devops/dependencies-igc-dev.json'
       - '.github/workflows/sycl-containers-igc-dev.yaml'