chore: added postman and linting to makefile

[BenedictHomuth]

Description

Added linting and postman command to makefile.
Also added a command for all tests under one command

Increased deployment health check tries to 5, since most often 4 tries were not enough time, for the DNS entries to be available.

Changelog

• Added postman command
• Added linting command
• Added a command for all go tests / lints
• Added one more retry to deployment health check

[Schwehn42]

lgtm

[github-actions]

The deployment to the dev cluster was successful. You can find the deployment here: https://4248.development.scrumlr.fra.ics.inovex.io
This deployment is only for testing purposes and will be deleted after 1 week.
To redeploy rerun the workflow.
DO NOT STORE IMPORTANT DATA ON THIS DEPLOYMENT

Deployed Images

• ghcr.io/inovex/scrumlr.io/scrumlr-frontend:sha-d2dd4a6

• ghcr.io/inovex/scrumlr.io/scrumlr-server:sha-d2dd4a6

[octomind-dev]

🐙 Octomind

Test Report: 12/14 successful.

description	status	details
About Section Visibility Test	Passed ✅	click
change avatar	Passed ✅	click
check Privacy Policy	Passed ✅	click
check terms & conditions	Passed ✅	click
close cookie banner - front page	Passed ✅	click
close cookie banner - sign-in	Passed ✅	click
create and delete board columns	Failed ❌	click
create_and_delete_notes_and_actions_v2	Passed ✅	click
create lean coffee board	Passed ✅	click
edit_notes_and_actions_v5	Passed ✅	click
get started	Passed ✅	click
share_session	Passed ✅	click
sign-in	Passed ✅	click
test all ways to open the setup flow	Failed ❌	click

commit sha: d2dd4a6