fix: release cadence post dates are yyyy-mm-dd

Author: codebytere

locale/en/blog/announcements/adjusted-release-schedule-covid.md

@@ -15,7 +15,7 @@ The stability and reliability of our release lines is tantamount, and as we resp
 
 The next planned release of `v10.x` will now be on `2020-04-07`.
 
-The Maintenance date for `v10.x` has been pushed back to 05-19-2020, and there may now be another Semver-Patch release for the `v10.x` line before this line enters Maintenance.
+The Maintenance date for `v10.x` has been pushed back to 2020-05-19, and there may now be another Semver-Patch release for the `v10.x` line before this line enters Maintenance.
 
 ### `v12.x`
 
@@ -25,17 +25,17 @@ The next planned release of `v12.x` will now be on `2020-04-07`.
 
 We have specifically delayed the Semver-Minor releases of `v12.x` which will now occur on the following dates:
 
-* `12.17.0` on 05-26-2020
-* `v12.18.0` on 08-25-2020
+* `12.17.0` on 2020-05-26
+* `v12.18.0` on 2020-08-25
 
-`v12.x` remains slated to enter Maintenance on 10-27-2020, but this date is now subject to change as deemed appropriate by the Release Team and with appropriate notice.
+`v12.x` remains slated to enter Maintenance on 2020-10-20, but this date is now subject to change as deemed appropriate by the Release Team and with appropriate notice.
 
 ### `v13.x`
 
 There are no scheduled changes to the Current release schedule, nor will there be changes to the current End of Life date scheduled for June 2020.
 
 ### `v14.x`
 
-There are no changes currently scheduled to the initial release date of `v14.x` on 04-21-2020, and this release line will follow the Current release schedule following initial release.
+There are no changes currently scheduled to the initial release date of `v14.x` on 2020-04-21, and this release line will follow the Current release schedule following initial release.
 
-At this point in time, `v14.x` is still planned to enter LTS on 10-19-2020, but this date is now subject to change as deemed appropriate by the Release Team and with appropriate notice.
+At this point in time, `v14.x` is still planned to enter LTS on 2020-10-20, but this date is now subject to change as deemed appropriate by the Release Team and with appropriate notice.