[TASK] Refresh distro version support for 1.4

[innobead]

What's the task? Please describe

Longhorn supports FS volume which actually relies on some kernel modules to achieve that like ext4 and xfs. In different distros w/ different Kernel versions, probably there will some compatibility problems like unsupported mount options to cause the volume mount to fail. The doc needs to update to ensure people understand the criteria for the host kernel.

Describe the items of the task (DoD, definition of done) you'd like

• Update the supported distro in the master (1.4), 1.3, and 1.2 documentation (https://longhorn.io/docs/1.3.0/best-practices/#software) @yangchiu has updated versions for 1.4, https://longhorn.io/docs/1.4.0/best-practices/#software and for older releases, just keep it as is.
• Update the environment check script to provide early notice to users

Additional context

#2640
ceph/ceph-csi#966 (comment)

cc @longhorn/qa @PhanLe1010 @derekbit

[joshimoo]

We previously had a similiar issuse to support an older suse distro.
#1208 (comment)

We also previously had the slow extents retrieval on EXT4 linked above already.
#2640
#2507 (comment)

If we want to allow usage on a older kernel we can add a fsParam to the storage class to allow the user to specify custom params. Since a storage class always only uses a single fsType that would make sense. Since I already wrote the paramOverrider for EXT4 we can deprecate the setting and instead allow the users to use the fsParam on the storage class.
We can use a similiar approach to allow the user to specify args for the fsCHK when provided.

Just for future reference one can create a xfs fs on the older kernels by passing:
-m reflink=0 to the mkfs.xfs call.

[weizhe0422]

According to the conclusion of the last meeting, since the fs type will continue to be backported in the Linux kernel.

So the task will add a check function to the environment_check.sh to check the supported fs types, currently ext4 and xfs.

[innobead]

ref: #4642

[innobead]

Don't really need to figure out the min Kernel support but rather provide a flexible way to let users customize fs parameters, so let's focus on #4642.

@yangchiu has updated the distro version to 1.4.0 already.