Restore git binary in final runtime image

Dropped from the apk install list in 1.2.0 (#66) during the size-reduction
refactor. Other binaries removed in that same diff (rsync, zip, imagemagick,
certbot, docker-cli) are still provided by the phpswoole/swoole base image,
but git is not — so it actually disappeared from the final image and broke
VCS-dependent services.

Adds a container-structure-test so a future regression is caught.

Author: ChiragAgg5k

CHANGES.md

@@ -1,5 +1,15 @@
 # CHANGELOG
 
+## Version 1.2.1
+
+### Fix
+
+* Restore `git` in final image — unintentionally dropped from runtime apk install in 1.2.0; required by VCS-dependent services
+
+### Add
+
+* container-structure-test for `git` command
+
 ## Version 1.2.0
 
 ### Add

Dockerfile

@@ -194,6 +194,7 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && \
     freetype \
     docker-cli \
     docker-cli-compose \
+    git \
     icu-libs \
     imagemagick \
     imagemagick-heic \

tests.yaml

@@ -21,6 +21,10 @@ commandTests:
     command: "docker"
     args: ["compose", "version"]
     expectedOutput: ["Docker Compose version v.*"]
+  - name: 'Git command'
+    command: "git"
+    args: ["--version"]
+    expectedOutput: ["git version 2.*"]
   - name: 'PHP modules'
     command: "php"
     args: ["-m"]