Add confidential-workflows plugin, update gitRefs to clean commit

Both confidential plugins now point at ed10df3 which has replace
directives removed from go.mod, allowing loopinstall to build
from the module cache on a clean checkout.

Author: nadahalli

plugins/plugins.private.yaml

@@ -53,5 +53,9 @@ plugins:
       installPath: "."
   confidential-http:
     - moduleURI: "github.com/smartcontractkit/confidential-compute/enclave/apps/confidential-http/capability"
-      gitRef: "6e03ab2b759f6a6983673e4071b712438b1c923c"
+      gitRef: "ed10df3862dc8c70d85ee46f123138a87e7c7ed4"
       installPath: "./cmd/confidential-http"
+  confidential-workflows:
+    - moduleURI: "github.com/smartcontractkit/confidential-compute/enclave/apps/confidential-workflows/capability"
+      gitRef: "ed10df3862dc8c70d85ee46f123138a87e7c7ed4"
+      installPath: "./cmd/confidential-workflows"