[SNMP]: Skip test_snmp_link_local testcase

[SuvarnaMeenakshi]

Description of PR

Summary:
Fixes # (issue)

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 201911
• 202012
• 202205
• 202305

Approach

What is the motivation for this PR?

sonic-net/sonic-buildimage#17045 changes the approach taken to update snmp and the test case has to be modified to work with latest changes. Details added in #10766

How did you do it?

skip test_snmp_link_local test case for all branches.

How did you verify/test it?

./run_tests.sh -n vms-kvm-t0 -d vlab-01 -c snmp/test_snmp_link_local.py -f vtestbed.yaml -i ../ansible/veos_vtb -e "--skip_sanity --disable_loganalyzer" -e "--mark-conditions-files common/plugins/conditional_mark/tests_mark_conditions.yaml" -u -e "--rootdir /data/sonic-mgmt/tests"
=== Running tests in groups ===
Running: python2 -m pytest snmp/test_snmp_link_local.py --inventory ../ansible/veos_vtb --host-pattern vlab-01 --testbed vms-kvm-t0 --testbed_file vtestbed.yaml --log-cli-level warning --log-file-level debug --kube_master unset --showlocals --assert plain --show-capture no -rav --allow_recover --ignore=ptftests --ignore=acstests --ignore=saitests --ignore=scripts --ignore=k8s --ignore=sai_qualify --junit-xml=logs/tr.xml --log-file=logs/test.log --skip_sanity --disable_loganalyzer --mark-conditions-files common/plugins/conditional_mark/tests_mark_conditions.yaml --rootdir /data/sonic-mgmt/tests
                                                                                                                     

snmp/test_snmp_link_local.py::test_snmp_link_local_ip[vlab-01] SKIPPED                                                                                        [100%]

========================================================================= warnings summary ==========================================================================
/usr/local/lib/python2.7/dist-packages/_pytest/mark/structures.py:335
  /usr/local/lib/python2.7/dist-packages/_pytest/mark/structures.py:335: PytestUnknownMarkWarning: Unknown pytest.mark.bsl - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/latest/mark.html
    PytestUnknownMarkWarning,

-- Docs: https://docs.pytest.org/en/latest/warnings.html
------------------------------------------------------ generated xml file: /data/sonic-mgmt/tests/logs/tr.xml -------------------------------------------------------
====================================================================== short test summary info ======================================================================
SKIPPED [1] snmp/test_snmp_link_local.py:20: SNMP over link local IPv6 not supported in all scenarios.
=============================================================== 1 skipped, 1 warnings in 6.91 seconds ===============================================================
INFO:root:Can not get Allure report URL. Please check logs

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation

[SuvarnaMeenakshi]

@qiluo-msft can you help review this.
link local test case should be updated to match the changes done in PR sonic-net/sonic-buildimage#17045
Skipping this test until we modify the test case.