Merge pull request 'Update base dependencies to v3.8.8-r0' (#31) from renovate/base-dependencies into main

Reviewed-on: #31

Dockerfile

@@ -18,7 +18,7 @@ RUN apk upgrade --no-cache \
     cargo="1.47.0-r2" \
     build-base="0.5-r2" \
     py3-setuptools="51.3.3-r0" \
-    python3-dev="3.8.7-r1" \
+    python3-dev="3.8.8-r0" \
     libffi-dev="3.3-r2" \
     libxslt-dev="1.1.34-r0" \
     libxml2-dev="2.9.10-r6" \
@@ -29,7 +29,7 @@ RUN apk upgrade --no-cache \
  && apk add --no-cache \
     ca-certificates="20191127-r5" \
     su-exec="0.2-r1" \
-    python3="3.8.7-r1" \
+    python3="3.8.8-r0" \
     py3-pip="20.3.4-r0" \
     libxml2="2.9.10-r6" \
     libxslt="1.1.34-r0" \