Update base image version

Dockerfile.v0.13

 # development image
-ARG BASE=alpine:3.10
+ARG BASE=alpine:3.13
 FROM $BASE AS builder
 
 # install development dependencies

build.sh

@@ -9,17 +9,17 @@ docker build . \
     -f Dockerfile.v0.13 \
     --pull \
     -t ${NAME}:v0.13.1 \
-    --build-arg BASE=alpine:3.10
+    --build-arg BASE=alpine:3.13
 docker build . \
     -f Dockerfile.v0.13 \
     --pull \
     -t ${NAME}:v0.13.1-aarch64 \
-    --build-arg BASE=multiarch/alpine:aarch64-v3.10
+    --build-arg BASE=multiarch/alpine:aarch64-v3.13
 docker build . \
     -f Dockerfile.v0.13 \
     --pull \
     -t ${NAME}:v0.13.1-armhf \
-    --build-arg BASE=multiarch/alpine:armhf-v3.10
+    --build-arg BASE=multiarch/alpine:armhf-v3.13
 
 docker tag ${NAME}:v0.13.1-aarch64 ${NAME}:aarch64
 docker tag ${NAME}:v0.13.1-armhf ${NAME}:armhf