Clearnup reference to github.com/Azure for SONiC repositories (sonic-net#8305)

What is the motivation for this PR?
All the SONiC repositories have been migrated to github.com/sonic-net. We need to correct the links referring to old URLs.

How did you do it?
This change is to cleanup a few references to github.com/Azure.

How did you verify/test it?
Document change. No test required.

Signed-off-by: Xin Wang <xiwang5@microsoft.com>

Author: wangxin

docs/testbed/sai_quality/ExampleCheckSonicVersionAndBuildSaiserverDocker.md

@@ -60,7 +60,7 @@ In this article, you will get known how to get a saiserver docker and get a buil
    ```
    *Note: Follow the resource to get how to build a binary and docker*
 
-   [GitHub - Azure/sonic-buildimage: Scripts which perform an installable binary image build for SONiC](https://github.com/sonic-net/sonic-buildimage)
+   [GitHub - sonic-net/sonic-buildimage: Scripts which perform an installable binary image build for SONiC](https://github.com/sonic-net/sonic-buildimage)
 
 3. Start a local build
    ```
@@ -106,4 +106,4 @@ In this article, you will get known how to get a saiserver docker and get a buil
    ```
    # SAI repo is located inside local /code folder
    docker run --name saisever-builder-20201231-39 -v  /code:/data -di saisever-builder-20201231-39:0.0.1 bash
-   ```
+   ```

docs/testplan/Chassis-everflow-test-plan.md

@@ -6,11 +6,11 @@
 
 # Introduction
 
-This is the test plan for Everflow on distributed VOQ system, as described in the [VOQ Everflow HLD](https://github.com/Azure/SONiC/blob/master/doc/voq/everflow.md).
+This is the test plan for Everflow on distributed VOQ system, as described in the [VOQ Everflow HLD](https://github.com/sonic-net/SONiC/blob/master/doc/voq/everflow.md).
 
 # Test Setup
 
-The test cases proposed in the test plan will be run in [T2 topology](https://github.com/Azure/sonic-mgmt/blob/aster/ansible/vars/topo_t2.yml).
+The test cases proposed in the test plan will be run in [T2 topology](https://github.com/sonic-net/sonic-mgmt/blob/aster/ansible/vars/topo_t2.yml).
 
 # Test Cases
 

tests/acl/test_acl.py

@@ -203,15 +203,15 @@ def get_t2_info(duthosts, tbinfo):
             if len(upstream_rifs):
                 for port in upstream_rifs:
                     # This code is commented due to a bug which restricts rif interfaces to
-                    # be added to global acl table - https://github.com/Azure/sonic-utilities/issues/2185
+                    # be added to global acl table - https://github.com/sonic-net/sonic-utilities/issues/2185
                     if namespace == DEFAULT_NAMESPACE:
                         acl_table_ports[''].append(port)
                     else:
                         acl_table_ports[namespace].append(port)
             else:
                 for port in downstream_rifs:
                     # This code is commented due to a bug which restricts rif interfaces to
-                    # be added to global acl table - https://github.com/Azure/sonic-utilities/issues/2185
+                    # be added to global acl table - https://github.com/sonic-net/sonic-utilities/issues/2185
                     if namespace == DEFAULT_NAMESPACE:
                         acl_table_ports[''].append(port)
                     else:

tests/common/helpers/dut_utils.py

@@ -302,7 +302,7 @@ def ignore_t2_syslog_msgs(duthost):
         bounce which results in SAI sending messages orchagent regarding the fabric port state change.
         However, in linecards in T2 chassis, there is modelling of fabric ports in orchagent. Thus, orchagent generates
         error message indication to port object found for the port.
-        Please see https://github.com/Azure/sonic-buildimage/issues/9033 for details.
+        Please see https://github.com/sonic-net/sonic-buildimage/issues/9033 for details.
     """
     if duthost.topo_type == "t2" and duthost.facts.get('platform_asic') == "broadcom-dnx":
         ignoreRegex = [".*orchagent.*Failed to get port by bridge port ID.*"]