Revert "Bump version: 2.21.0 [ci skip]"

This reverts commit b322f91.

Author: cainejette

bin/ghe-host-check

@@ -113,7 +113,7 @@ fi
 
 # backup-utils 2.13 onwards limits support to the current and previous two releases
 # of GitHub Enterprise Server.
-supported_minimum_version="2.19.0"
+supported_minimum_version="2.18.0"
 
 if [ "$(version $version)" -ge "$(version $supported_minimum_version)" ]; then
   supported=1

debian/changelog

@@ -1,15 +1,3 @@
-github-backup-utils (2.21.0) UNRELEASED; urgency=medium
-
-  * Introduce option to skip restoring of audit logs #596
-  * Beta: Execute ghe-backup tasks in parallel #597
-  * Beta: Execute ghe-restore tasks in parallel #601
-  * Run repositories restore in parallel #603
-  * Fix mismatched `bm_start` and `bm_end` commands #607
-  * remove rsync restore method used by GHES versions prior to 2.13 #608
-  * Output MySQL backup strategy for clarity during backup and restore #610
-
- -- Hao Jiang <[email protected]>  Tue, 09 Jun 2020 17:59:06 +0000
-
 github-backup-utils (2.19.5) UNRELEASED; urgency=medium
 
   * In legacy mode we should use ghe-import-mysql #581

script/cibuild

@@ -6,7 +6,7 @@ set -e
 # place with this version at the beginning of each test and many commands have
 # conditional logic based on the remote version. Running the suite against
 # different major versions ensures we're covering these conditional paths.
-REMOTE_VERSIONS="2.19.0 2.20.0 2.21.0"
+REMOTE_VERSIONS="2.18.0 2.19.0 2.20.0"
 
 # Enable verbose logging of ssh commands
 export GHE_VERBOSE_SSH=true

share/github-backup-utils/version

@@ -1 +1 @@
-2.21.0
+2.20.2

test/testlib.sh

@@ -42,7 +42,7 @@ export GHE_BACKUP_CONFIG GHE_DATA_DIR GHE_REMOTE_DATA_DIR GHE_REMOTE_ROOT_DIR
 
 # The default remote appliance version. This may be set in the environment prior
 # to invoking tests to emulate a different remote vm version.
-: ${GHE_TEST_REMOTE_VERSION:=2.21.0}
+: ${GHE_TEST_REMOTE_VERSION:=2.20.0}
 export GHE_TEST_REMOTE_VERSION
 
 # Source in the backup config and set GHE_REMOTE_XXX variables based on the