fix: set correct owner on project grants (#9089)

# Which Problems Are Solved

In versions previous to v2.66 it was possible to set a different
resource owner on project grants. This was introduced with the new
resource based API. The resource owner was possible to overwrite using
the x-zitadel-org header.

Because of this issue project grants got the wrong resource owner,
instead of the owner of the project it got the granted org which is
wrong because a resource owner of an aggregate is not allowed to change.

# How the Problems Are Solved

- The wrong owners of the events are set to the original owner of the
project.
- A new event is pushed to these aggregates `project.owner.corrected` 
- The projection updates the owners of the user grants if that event was
written

# Additional Changes

The eventstore push function (replaced in version 2.66) writes the
correct resource owner.

# Additional Context

closes https://github.com/zitadel/zitadel/issues/9072

internal/eventstore/handler/v2/statement.go

@@ -601,6 +601,12 @@ func NewCond(name string, value interface{}) Condition {
 	}
 }
 
+func NewUnequalCond(name string, value any) Condition {
+	return func(param string) (string, []any) {
+		return name + " <> " + param, []any{value}
+	}
+}
+
 func NewNamespacedCondition(name string, value interface{}) NamespacedCondition {
 	return func(namespace string) Condition {
 		return NewCond(namespace+"."+name, value)