v1.5.5

Fixes

• Fix error when reloading a stopped cluster with --skip-restart argument (#1513, @AstroProfundis)
• Use absolute path for sudo command, to workaround errors on systems where devtoolset is enabled (#1516, @nexustar)
• Fix custom TiDB port not correctly set in playground (#1511, @hecomlilong)

Improvements

• Adjust suggested argument order in playground examples (#1522, @glkappe)