Update docker base image version

.github/workflows/docker.yml

@@ -151,6 +151,7 @@ jobs:
           tags: tindy2013/subconverter:latest
           build-args: |
             SHA=${{ steps.vars.outputs.sha_short }}
+            THREADS=2
           outputs: type=docker,dest=/tmp/image_armv7.tar
 
       - name: Upload artifact
@@ -176,6 +177,8 @@ jobs:
           platforms: linux/arm/v7
           context: scripts/
           tags: tindy2013/subconverter:${{steps.version.outputs.result}}
+          build-args: |
+            THREADS=2
           outputs: type=docker,dest=/tmp/image_armv7_release.tar
           
 
@@ -211,6 +214,7 @@ jobs:
           tags: tindy2013/subconverter:latest
           build-args: |
             SHA=${{ steps.vars.outputs.sha_short }}
+            THREADS=2
           outputs: type=docker,dest=/tmp/image_arm64.tar
 
       - name: Upload artifact
@@ -236,6 +240,8 @@ jobs:
           platforms: linux/arm64
           context: scripts/
           tags: tindy2013/subconverter:${{steps.version.outputs.result}}
+          build-args: |
+            THREADS=2
           outputs: type=docker,dest=/tmp/image_arm64_release.tar
           
 

scripts/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.13
+FROM alpine:3.14
 LABEL maintainer "tindy.it@gmail.com"
 ARG THREADS="4"
 ARG SHA=""