Bump debian from 10.9-slim to 10.10-slim (#14)

Bumps debian from 10.9-slim to 10.10-slim.

---
updated-dependencies:
- dependency-name: debian
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM debian:10.9-slim as stubby
+FROM debian:10.10-slim as stubby
 
 ARG GETDNS_VERSION="1.6.0"
 ENV GETDNS_VERSION=${GETDNS_VERSION}
@@ -44,7 +44,7 @@ RUN gpg --import willem.nlnetlabs.nl \
     && strip -s /usr/local/bin/stubby \
     && strip -s /usr/local/lib/libgetdns.so.10
 
-FROM debian:10.9-slim
+FROM debian:10.10-slim
 
 SHELL ["/bin/bash", "-euxo", "pipefail", "-c"]