Fix update checker (#13)

deb/VERSION

@@ -1 +1 @@
-1.5.0-1
+1.4.5-1

deb/update-check.sh

@@ -1,28 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-VERSION=`cat VERSION`
-
-JSON_CONTENT=$(curl -q https://protonmail.com/download/current_version_linux.json)
-URL=$(echo ${JSON_CONTENT} | sed -n "s/^.*\"DebFile\":\"\([a-z0-9:/._-]*\)\".*$/\1/p")
-CURR_VERSION=$(echo $URL | sed -n "s/https:\/\/protonmail.com\/.*_\([0-9.-]*\)_.*.deb/\1/p")
-
-if [[ -z $CURR_VERSION ]]; then
-    echo "Failed to get new version. Existing."
-    exit 1
-fi
-
-if [[ $VERSION != $CURR_VERSION ]]; then
-    echo "New release found: ${CURR_VERSION}"
-
-    # bump up to new release
-    echo ${CURR_VERSION} > VERSION
-
-    # commit
-    git config --local user.email "actions@github.com"
-    git config --local user.name "Github Action"
-    git add VERSION
-    git commit -m "Bump version to ${CURR_VERSION}" --author="Xiaonan Shen <s@sxn.dev>"
-    git push
-fi