treewide: Rename references from OvS master to main.

There was recent switch in OvS from master to main branch.
Use main in all the references across OVN code base.

Signed-off-by: Ales Musil <amusil@redhat.com>
Acked-by: Simon Horman <horms@ovn.org>
Signed-off-by: Dumitru Ceara <dceara@redhat.com>

.github/workflows/ovn-fake-multinode-tests.yml

@@ -35,12 +35,12 @@ jobs:
     # Check out ovn and ovs separately inside ovn-fake-multinode/ovn and ovn-fake-multinode/ovs
     # ovn-fake-multinode builds and installs ovs from ovn-fake-multinode/ovs
     # and it builds and installs ovn from ovn-fake-multinode/ovn. It uses the ovs submodule for ovn compilation.
-    - name: Check out ovs master
+    - name: Check out ovs main
       uses: actions/checkout@v4
       with:
         path: 'ovn-fake-multinode/ovs'
         repository: 'openvswitch/ovs'
-        ref: 'master'
+        ref: 'main'
 
     - name: Check out ovn ${{ matrix.cfg.branch }}
       uses: actions/checkout@v4

Documentation/tutorials/ovn-sandbox.rst

@@ -174,5 +174,5 @@ man page for more detail.
 .. _ovn-nbctl(8): http://www.ovn.org/support/dist-docs/ovn-nbctl.8.html
 .. _ovn-sbctl(8): http://www.ovn.org/support/dist-docs/ovn-sbctl.8.html
 .. _ovn-trace(8): http://www.ovn.org/support/dist-docs/ovn-trace.8.html
-.. _ovs-advanced: https://github.com/openvswitch/ovs/blob/master/Documentation/tutorials/ovs-advanced.rst
+.. _ovs-advanced: https://github.com/openvswitch/ovs/blob/main/Documentation/tutorials/ovs-advanced.rst
 

README.rst

@@ -75,7 +75,7 @@ For answers to common questions, refer to the `FAQ <Documentation/faq>`__.
 To learn about some advanced features of the Open vSwitch software switch, read
 the tutorial_.
 
-.. _tutorial: https://github.com/openvswitch/ovs/blob/master/Documentation/tutorials/ovs-advanced.rst
+.. _tutorial: https://github.com/openvswitch/ovs/blob/main/Documentation/tutorials/ovs-advanced.rst
 
 Each OVN program is accompanied by a manpage.  Many of the manpages are customized
 to your configuration as part of the build process, so we recommend building OVN