Update contact for code of conduct (#1384)

Signed-off-by: Hayden B <[email protected]>

CODE_OF_CONDUCT.md

@@ -55,7 +55,7 @@ further defined and clarified by project maintainers.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting the project team at <maintainers@sigstore.dev>. All
+reported by contacting the project team at <tac@sigstore.dev>. All
 complaints will be reviewed and investigated and will result in a response that
 is deemed necessary and appropriate to the circumstances. The project team is
 obligated to maintain confidentiality with regard to the reporter of an incident.
@@ -71,4 +71,4 @@ This Code of Conduct is adapted from the [Contributor Covenant][homepage], versi
 available at [http://contributor-covenant.org/version/1/4][version]
 
 [homepage]: http://contributor-covenant.org
-[version]: http://contributor-covenant.org/version/1/4/
+[version]: http://contributor-covenant.org/version/1/4/