gitlab ci does not update code at remote server - deployment

Question

I want to deploy ma test app from local repo to gitlab repo and with gitlab ci push it to my remote server. SSH connection is working, gitlab CI shows that job is passed, but code on remote server is not updated.
I made bare repo in: /home/repos/testDeploy.git
And folder for files is in: /home/example.com/web/testDeploy
I added
My .gitlab-ci.yml file
stages:
- deploy
deployment:
stage: deploy
environment:
name: production
url: http://www.example.com/testDeploy
only:
- master
before_script:
- 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
- eval $(ssh-agent -s)
- chmod 600 ~/.ssh/id_rsa_gitlab && chmod 700 ~/.ssh
- '[[ -f /.dockerenv ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config'
script:
- git remote add production ssh://user#server:port/home/repos/testDeploy.git
- git push -f production master
- echo "Deployed to production!"
Also, i have post-receive hook:
#!/bin/sh
git --git-dir=/home/repos/testDeploy.git --work-tree=/home/example.com/web/testDeploy checkout -f
I make changes in my local repo, commit and push to origin master to gitlab. Job is passed, but as I mention above, file on remote server is not update.
Output from gitlab job is:
Fetching changes...
HEAD is now at 595db67 as
Checking out 595db67b as master...
Skipping Git submodules setup
$ which ssh-agent || ( apt-get update -y && apt-get install openssh- client -y )
/usr/bin/ssh-agent
$ eval $(ssh-agent -s)
Agent pid 40589
$ chmod 600 ~/.ssh/id_rsa_gitlab && chmod 700 ~/.ssh
$ [[ -f /.dockerenv ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config
$ git branch
* (HEAD detached at 595db67)
master
production
$ git push -f production master
Everything up-to-date
$ echo "Deployed to production!"
Deployed to production!
Job succeeded
What I am doing wrong? Can you someone help me please to figure it out? Thank you for all your answers.