fix typo "odic" to "oidc" (#820)

Noticed a typo where "oidc" was mistakenly written as "odic". This typo was present in both the documentation and a certain file name.

Co-authored-by: Tom Keller <[email protected]>

Author: morihaya

examples/federated-setup/README.md

@@ -1,6 +1,6 @@
 # federated-setup
 
-## [github-action-oidc-federation](./github-actions-odic-federation.yml)
+## [github-action-oidc-federation](./github-actions-oidc-federation.yml)
 
 Setup of the OIDC federation between your GitHub Organization/repository and your AWS account.