chore: skip building abseil on the build_docs step (#14998)

## Description

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## Testing

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Signed-off-by: Juanjo Alvarez <juanjo.alvarezmartinez@datadoghq.com>

Author: juanjux

scripts/gen_gitlab_config.py

@@ -124,6 +124,7 @@ def gen_build_docs() -> None:
             print("    PIP_CACHE_DIR: '${CI_PROJECT_DIR}/.cache/pip'", file=f)
             print("    KUBERNETES_MEMORY_REQUEST: 4Gi", file=f)
             print("    KUBERNETES_MEMORY_LIMIT: 4Gi", file=f)
+            print("    DD_COMPILE_ABSEIL: 0", file=f)
             print("  script:", file=f)
             print("    - |", file=f)
             print("      hatch run docs:build", file=f)