chore(deps): update docker/dockerfile:1 docker digest to 93bfd3b (#284)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [docker/dockerfile](https://redirect.github.com/moby/buildkit) |
syntax | digest | `db1ff77` -> `93bfd3b` |

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Dockerfile-bullseye

@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1@sha256:db1ff77fb637a5955317c7a3a62540196396d565f3dd5742e76dddbb6d75c4c5
+# syntax=docker/dockerfile:1@sha256:93bfd3b68c109427185cd78b4779fc82b484b0b7618e36d0f104d4d801e66d25
 # 
 # base layer with perl and some general preparations
 #

Dockerfile-threaded-bullseye

@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1@sha256:db1ff77fb637a5955317c7a3a62540196396d565f3dd5742e76dddbb6d75c4c5
+# syntax=docker/dockerfile:1@sha256:93bfd3b68c109427185cd78b4779fc82b484b0b7618e36d0f104d4d801e66d25
 # 
 # base layer with perl and some general preparations
 #