[MM-53840] Add migration workflow (#24211)

server/build/dotenv/migration.env

@@ -0,0 +1,16 @@
+GOBIN=/mattermost/bin
+PG_USERNAME=mmuser
+PG_PASSWORD=mostest
+PG_SCHEMA=mattermost_test
+MYSQL_USERNAME=root
+MYSQL_PASSWORD=mostest
+MYSQL_SCHEMA=mattermost_test
+POSTGRES_MIGRATIONS_PATH=./channels/db/migrations/postgres
+MYSQL_DSN=${MYSQL_USERNAME}:${MYSQL_PASSWORD}@tcp(mysql:3306)/${MYSQL_SCHEMA}?charset=utf8mb4,utf8&readTimeout=30s&writeTimeout=30s&multiStatements=true
+POSTGRES_DSN=postgres://${PG_USERNAME}:${PG_PASSWORD}@postgres:5432/${PG_SCHEMA}?sslmode=disable
+
+MM_SERVICESETTINGS_ENABLELOCALMODE=true
+MM_SQLSETTINGS_DRIVERNAME=mysql
+MM_SQLSETTINGS_DATASOURCE=mmuser:mostest@tcp(mysql:3306)/mattermost_test?charset=utf8mb4,utf8&readTimeout=30s&writeTimeout=30s&multiStatements=true&maxAllowedPacket=4194304
+MAX_WAIT_SECONDS=500
+IS_CI=true

server/build/dotenv/test.env

@@ -1,7 +1,7 @@
 TEST_DATABASE_MYSQL_DSN=mmuser:mostest@tcp(mysql:3306)/mattermost_test?charset=utf8mb4,utf8&readTimeout=30s&writeTimeout=30s&multiStatements=true&maxAllowedPacket=4194304
 TEST_DATABASE_POSTGRESQL_DSN=postgres://mmuser:mostest@postgres:5432/mattermost_test?sslmode=disable&connect_timeout=10
 TEST_DATABASE_MYSQL_ROOT_PASSWD=mostest
-GOBIN=/mattermost/mattermost-server/bin
+GOBIN=/mattermost/server/bin
 
 CI_INBUCKET_HOST=inbucket
 CI_MINIO_HOST=minio