Incorrect GC directory path

[WenyXu]

What type of bug is this?

Unexpected error

What subsystems are affected?

Datanode

What happened?

2023-09-19T11:26:16.846653773Z stdout F [2m2023-09-19T11:26:16.846491Z[0m [33m WARN[0m [2mmito2::worker::handle_drop[0m[2m:[0m Error occurs during trying to GC region dir data/greptime/s668c78b5_3e16_4c00_a97d_c2d452bd2789/1268/1268_0000000000: OpenDAL operator failed. Location: /home/weny/Projects/greptimedb-chaos/greptimedb/src/mito2/src/worker/handle_drop.rs:121:10, source: NotADirectory (permanent) at Operator::list, context: { service: s3, path: data/greptime/s668c78b5_3e16_4c00_a97d_c2d452bd2789/1268/1268_0000000000 } => the path trying to list should end with `/`

What operating system did you use?

Ubuntu 23.04

Relevant log output and stack trace

No response

How can we reproduce the bug?

Starts database
Creates a table
Inserts data
Drops the table

[killme2008]

The region dir must call normalize_dir when generating it:

greptimedb/src/object-store/src/util.rs

Line 23 in 9863e50

pub fn normalize_dir(dir: &str) -> String {

[evenyag]

We can normalize the dir in the opener

greptimedb/src/mito2/src/region/opener.rs

Lines 98 to 103 in 20f4f79

	pub(crate) async fn create_or_open<S: LogStore>(
	self,
	config: &MitoConfig,
	wal: &Wal<S>,
	) -> Result<MitoRegion> {
	let region_id = self.region_id;

greptimedb/src/mito2/src/region/opener.rs

Lines 163 to 168 in 20f4f79

	pub(crate) async fn open<S: LogStore>(
	self,
	config: &MitoConfig,
	wal: &Wal<S>,
	) -> Result<MitoRegion> {
	let region_id = self.region_id;