releng: Bump oct patch release one week later

As the cherry pick deadline for october '21 lands right during kubecon
week, SIG Release decided to move the patch releases one week later.

This PR modifies the dates in the schedule data file.

Signed-off-by: Adolfo García Veytia (Puerco) <[email protected]>

Author: puerco

data/releases/schedule.yaml

@@ -1,8 +1,8 @@
 schedules:
 - release: 1.22
   next: 1.22.3
-  cherryPickDeadline: 2021-10-15
-  targetDate: 2021-10-20
+  cherryPickDeadline: 2021-10-22
+  targetDate: 2021-10-27
   endOfLifeDate: 2022-10-28
   previousPatches:
     - release: 1.22.2
@@ -13,8 +13,8 @@ schedules:
       targetDate: 2021-08-19
 - release: 1.21
   next: 1.21.6
-  cherryPickDeadline: 2021-10-15
-  targetDate: 2021-10-20
+  cherryPickDeadline: 2021-10-22
+  targetDate: 2021-10-27
   endOfLifeDate: 2022-06-28
   previousPatches:
     - release: 1.21.5
@@ -35,8 +35,8 @@ schedules:
       note: Regression https://groups.google.com/g/kubernetes-dev/c/KuF8s2zueFs
 - release: 1.20
   next: 1.20.12
-  cherryPickDeadline: 2021-10-15
-  targetDate: 2021-10-20
+  cherryPickDeadline: 2021-10-22
+  targetDate: 2021-10-27
   endOfLifeDate: 2022-02-28
   previousPatches:
     - release: 1.20.11