Update community files (#184)

Signed-off-by: Knative Automation <[email protected]>

Author: knative-automation

OWNERS_ALIASES

@@ -161,17 +161,17 @@ aliases:
   - nicolaferraro
   - rhuss
   knative-admin:
-  - bsnchan
+  - csantanapr
   - dprotaso
   - evankanderson
   - julz
   - knative-prow-releaser-robot
   - knative-prow-robot
   - knative-prow-updater-robot
   - knative-test-reporter-robot
+  - lance
   - markusthoemmes
   - matzew
-  - mbehrendt
   - nak3
   - pmorie
   - rhuss
@@ -239,8 +239,8 @@ aliases:
   source-wg-leads:
   - lionelvillard
   steering-committee:
-  - bsnchan
-  - mbehrendt
+  - csantanapr
+  - lance
   - pmorie
   - thisisnotapril
   - vaikas