Verify installed packages against Dockerfile.rhel8

[coreydaley]

Sample output:

$ SHA=650471d59f3aacf07a8a2ad58d52853a9aa3a653 sh scripts/verify-jenkins.sh 
[VERIFYING] Installed packages ...
    - downloading Dockerfile.rhel8 ...                PASS
    - checking dejavu-sans-fonts ...                  PASS
    - checking wget ...                               PASS
    - checking rsync ...                              PASS
    - checking gettext ...                            PASS
    - checking git ...                                PASS
    - checking git-lfs ...                            FAIL
    - checking tar ...                                PASS
    - checking zip ...                                PASS
    - checking unzip ...                              PASS
    - checking openssl ...                            PASS
    - checking bzip2 ...                              PASS
    - checking java-11-openjdk ...                    PASS
    - checking java-11-openjdk-devel ...              PASS
    - checking java-1.8.0-openjdk ...                 FAIL
    - checking java-1.8.0-openjdk-devel ...           FAIL
    - checking jq ...                                 PASS
    - checking glibc-locale-source ...                PASS
    - checking xmlstarlet ...                         FAIL
    - checking glibc-langpack-en ...                  PASS

[coreydaley]

/assign @divyansh42 @mbharatk @apoorvajagtap for lgtm

[openshift-ci[bot]]

@coreydaley: all tests passed!

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[divyansh42]

/lgtm

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: coreydaley, divyansh42

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/openshift/jenkins/blob/master/OWNERS)~~ [coreydaley,divyansh42] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[coreydaley]

/label px-approved /label docs-approved /label qe-approved