add test crontab and test_script

.gitignore

@@ -1,5 +1,3 @@
 sshkeys/clients/
 sshkeys/host/
-crontab.txt
-maintain_repo.sh
 backups/

Testing/crontab.txt

@@ -0,0 +1 @@
+* * * * * /test_script.sh

Testing/test_script.sh

@@ -0,0 +1,3 @@
+# !/bin/bash
+
+echo "$(date +%Y-%m-%d_%H:%M:%S) Test" >> /logs/test.log

build.sh

@@ -12,8 +12,8 @@ run_docker_container() {
     -e MAINTENANCE_ENABLE="true" \
     -e INTERACTIVE_MODE="true" \
     -e TZ="Europe/Vienna" \
-    -v "$PWD"/crontab.txt:/crontab.txt \
+    -v "$PWD"/Testing/crontab.txt:/crontab.txt \
-    -v "$PWD"/maintain_repo.sh:/maintain_repo.sh \
+    -v "$PWD"/Testing/test_script.sh:/test_script.sh \
     -v "$PWD"/sshkeys/clients:/sshkeys/clients \
     -v "$PWD"/backups:/backups \
     "$DOCKER_IMAGE_NAME":"$GIT_BRANCH"