build(deps): bump oss-fuzz-base/base-builder-python from 3cb8993 to 8476df7 in /.clusterfuzzlite (#12164)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.clusterfuzzlite/Dockerfile

@@ -6,7 +6,7 @@
 # Pinned by digest for supply-chain integrity. Bump periodically (the OSS-Fuzz
 # base-builder is updated frequently with toolchain fixes); resolve a fresh digest with:
 #   docker buildx imagetools inspect gcr.io/oss-fuzz-base/base-builder-python:latest --format '{{.Manifest.Digest}}'
-FROM gcr.io/oss-fuzz-base/base-builder-python@sha256:3cb899359c06448afeabcffeefa9b814acb5040e391757a5790cdaa7d05ec520
+FROM gcr.io/oss-fuzz-base/base-builder-python@sha256:8476df732bcde364e001aa74b5df836ca28ff9c6acefb170cd9fb34ab07feea7
 
 COPY . $SRC/haystack
 WORKDIR $SRC/haystack