Update location of fmf plans

plans.fmf

@@ -1,36 +1,35 @@
 /tier1-internal:
   plan:
     import:
-      url: https://src.fedoraproject.org/tests/rootfiles.git
+      url: https://gitlab.com/redhat/centos-stream/tests/rootfiles.git
       name: /plans/tier1/internal
 
 /tier1-public:
   plan:
     import:
-      url: https://src.fedoraproject.org/tests/rootfiles.git
+      url: https://gitlab.com/redhat/centos-stream/tests/rootfiles.git
       name: /plans/tier1/public
 
 /tier2-tier3-internal:
   plan:
     import:
-      url: https://src.fedoraproject.org/tests/rootfiles.git
+      url: https://gitlab.com/redhat/centos-stream/tests/rootfiles.git
       name: /plans/tier2-tier3/internal
 
 /tier2-tier3-public:
   plan:
     import:
-      url: https://src.fedoraproject.org/tests/rootfiles.git
+      url: https://gitlab.com/redhat/centos-stream/tests/rootfiles.git
       name: /plans/tier2-tier3/public
 
 /others-internal:
   plan:
     import:
-      url: https://src.fedoraproject.org/tests/rootfiles.git
+      url: https://gitlab.com/redhat/centos-stream/tests/rootfiles.git
       name: /plans/others/internal
 
 /others-public:
   plan:
     import:
-      url: https://src.fedoraproject.org/tests/rootfiles.git
+      url: https://gitlab.com/redhat/centos-stream/tests/rootfiles.git
       name: /plans/others/public
-