Fix typo in dependabot config (#1759)

Signed-off-by: Per Goncalves da Silva <[email protected]>
Co-authored-by: Per Goncalves da Silva <[email protected]>
Upstream-repository: operator-registry
Upstream-commit: d7fb51f9fb464af737f2e1d1c120224cd841e3e7

Author: 2 people

staging/operator-registry/.github/dependabot.yml

@@ -16,7 +16,7 @@ updates:
       golang-x-deps:
         patterns:
           - "golang.org/x/*"
-  - package-exosystem: "docker"
+  - package-ecosystem: "docker"
     directory: "/"
     schedule:
       interval: "daily"