Control git push command output

[mmorhun]

In case of push failure the task produces the following output:

step-patch-gitops
Cloning into 'testgo-gitops'...
[main 747a7b0] Update 'testgo' component image to: quay.io/user-org/rhdh-test:d719c735bdb7573482a9a24cee8442856885e36d@sha256:37607c61eec84d0ffefc8ec55dd859e688b10bb7391ec64a6f324e5e869eb7a9
 1 file changed, 1 insertion(+), 1 deletion(-)
Failed to push update to gitops repository: https://github.com/user-org/testgo-gitops
Do you have correct git credentials configured?

[mmorhun]

/test build-definitions-pull-request

[mmorhun]

/test build-definitions-pull-request

[mmorhun]

/test build-definitions-pull-request

[mmorhun]

/test build-definitions-pull-request

[mmorhun]

/test build-definitions-pull-request

[mmorhun]

/test build-definitions-pull-request

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[mmorhun]

/test build-definitions-pull-request

[mmorhun]

/test build-definitions-pull-request

[mmorhun]

Tests were rerun about 15 times and all except 1 (but then rebase was needed) failed due to failed to get cosign result for image or quay instability. Since it's a known issue and not related to the changes, merging this PR anyway.