fix bug in api url suffix when getting jobs for pipelines

# check last 500 pipelines max

for page in range(100):

    url_pls = API_BASE_URL + "/pipelines"

    # need both suffixes here to descend through the pages and get also older pipelines

    suffix = PER_PAGE_SUFFIX + PAGE_SUFFIX.format(page)

    resp_pls = requests.get(url_pls + suffix)

    for pl in resp_pls.json():

        if pl["ref"] == branch_name:

            url_jobs = url_pls + f"/{pl['id']}/jobs"

            resp_jobs = requests.get(url_jobs + suffix)

            # only one of the suffixes here - this assumes only max of 50 jobs per pipeline

            # so only one page needed

            resp_jobs = requests.get(url_jobs + PER_PAGE_SUFFIX)

            if job_name not in resp_jobs.text:

                continue