chore(deps): update gcr.io/distroless/base:nonroot docker digest to 9…

…7d1521 (slsa-framework#814)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| gcr.io/distroless/base | final | digest | `e5260be` -> `97d1521` |

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cli/experimental/service/Dockerfile

@@ -9,6 +9,6 @@ RUN go build -o slsa-verifier -trimpath -ldflags "-s -w -extldflags=-static" -mo
 # COPY ./service/service slsa-verifier
 # RUN chmod o+x ./slsa-verifier
 
-FROM gcr.io/distroless/base:nonroot@sha256:e5260be292def77bc70d03003f788f3d32c0796972ea1412d72cc0c843ab139a
+FROM gcr.io/distroless/base:nonroot@sha256:97d15218016debb9b6700a8c1c26893d3291a469852ace8d8f7d15b2f156920f
 COPY --from=base /src/slsa-verifier /
 ENTRYPOINT ["/slsa-verifier"]