refactor: conditionally compile wal impls

[tisonkun]

Rationale

Supersede #1231

After compile time with clean -

    Finished dev [unoptimized + debuginfo] target(s) in 2m 18s

Detailed Changes

Conditionally compile wal impls with feature flags.

Test Plan

Code refactor. All existing tests should pass.

[jiacai2050]

@tisonkun How big is the final binary?

Current size is 1.3G, which is a pain for distribution.

[tisonkun]

@jiacai2050 with make release-slim it gives:

l target/release-slim/ceresdb-server 
-rwxr-xr-x  1 tison  staff    83M Oct 20 15:01 target/release-slim/ceresdb-server

[tisonkun]

Updated. PTAL again @jiacai2050 @ShiKaiWi

[ShiKaiWi]

The default feature should include all the WAL implementations, to avoid any possible confusion about data loss, config not working, etc.

@tisonkun If we turn on all the implementations in the default features, it will be better, and there is no need to update the dockerfile and the ci. 😄

[tisonkun]

Updated. PTAL again.

BTW, golang related CI failed with a new issue:

server/coordinator/scheduler/static/scheduler.go:6:2: package cmp is not in GOROOT (/opt/hostedtoolcache/go/1.20.10/x64/src/cmp)
note: imported by a module that requires go 1.21
server/coordinator/scheduler/rebalanced/scheduler.go:8:2: package maps is not in GOROOT (/opt/hostedtoolcache/go/1.20.10/x64/src/maps)
note: imported by a module that requires go 1.21
server/coordinator/scheduler/nodepicker/hash/consistent_uniform.go:38:2: package slices is not in GOROOT (/opt/hostedtoolcache/go/1.20.10/x64/src/slices)
note: imported by a module that requires go 1.21
make[1]: *** [Makefile:37: build-meta] Error 1
make[1]: Leaving directory '/home/runner/work/ceresdb/ceresdb/integration_tests'

[tisonkun]

Perhaps we should setup go toolchain in the CI env.

[tisonkun]

CI passed. PTAL @jiacai2050 @ShiKaiWi

[ShiKaiWi]

👍