Fix OSS integration tests for docs (#3663) (#20578)

+ Routes Slack notifications to '#docs'
+ Sets default value of SKIP_DEPLOY variable in deploy_docusaurus
  script

.github/workflows/deploy-docs-site.yml

@@ -58,7 +58,7 @@ jobs:
           # 'C02TYDSUM8F' => '#dev-deploys'
           # 'C03BEADRPNY' => '#docs'
           args: >-
-            {\"channel\":\"C02TYDSUM8F\",\"attachments\":[
+            {\"channel\":\"C03BEADRPNY\",\"attachments\":[
             {\"color\":\"#ff0000\",\"blocks\":[
             {\"type\":\"section\",\"text\":{\"type\":\"mrkdwn\",\"text\":\"OSS Docs deploy fails on the latest master :bangbang:\"}},
             {\"type\":\"section\",\"text\":{\"type\":\"mrkdwn\",\"text\":\"_merged by_: *${{ github.actor }}*\"}},
@@ -74,7 +74,7 @@ jobs:
           # 'C02TYDSUM8F' => '#dev-deploys'
           # 'C03BEADRPNY' => '#docs'
           args: >-
-            {\"channel\":\"C02TYDSUM8F\",\"attachments\":[
+            {\"channel\":\"C03BEADRPNY\",\"attachments\":[
             {\"color\":\"#00ff00\",\"blocks\":[
             {\"type\":\"section\",\"text\":{\"type\":\"mrkdwn\",\"text\":\"OSS Docs deploy was successful :tada:\"}},
             {\"type\":\"section\",\"text\":{\"type\":\"mrkdwn\",\"text\":\"_merged by_: *${{ github.actor }}*\"}},

tools/bin/deploy_docusaurus

@@ -6,6 +6,7 @@
 # $0 is the currently running program (this file)
 this_file_directory=$(dirname $0)
 relative_path_to_defaults=$this_file_directory/../shell_defaults
+SKIP_DEPLOY=${SKIP_DEPLOY:-'no'}
 
 # if a file exists there, source it. otherwise complain
 if test -f $relative_path_to_defaults; then