Revert v1beta2 contract

We have not fully implemented the contract yet, so we were wrong to advertise it.
Sticking to v1beta1 until we are ready for real.

Signed-off-by: Lennart Jern <lennart.jern@est.tech>

Author: lentzi90

metadata.yaml

@@ -27,4 +27,4 @@ releaseSeries:
   contract: v1beta1
 - major: 0
   minor: 13
-  contract: v1beta2
+  contract: v1beta1

test/e2e/data/e2e_conf.yaml

@@ -122,8 +122,7 @@ providers:
   - name: v0.13.99
     value: ../../../config/default
     # This is the upcoming version.
-    # Specify no contract so that upgrade tests that start from a specific contract won't pick it up.
-    # contract: v1beta2
+    contract: v1beta1
     files:
     - sourcePath: "../data/shared/provider/metadata.yaml"
     - sourcePath: "./infrastructure-openstack-no-artifact/cluster-template.yaml"

test/e2e/data/shared/provider/metadata.yaml

@@ -27,4 +27,4 @@ releaseSeries:
   contract: v1beta1
 - major: 0
   minor: 13
-  contract: v1beta2
+  contract: v1beta1