0211 fix remsh

[zmstone]

Fixes EMQX-8936

The issue was exposed in a system where there is no compatible SSL dynamic library from the OS.
It failed to start a second remote_console session due to the ps -ef grep pattern included the first remote_console process in the output.
This caused the script to consider that there are two EMQX nodes running, so it had to consult the bootstrap config file to resolve node name and node cookie.
Since remote_console is not a boot command, it did not load the zip package included SSL dynamic libs, hence failed to parse the configs.

This PR included two changes, one fix and two enhancement

• Fix the grep pattern for ps -ef output lines
• Read node name and cookie directly from ps -ef output, instead of reading the latest (generated) vm.<time>.args file.
• Read -kernel ticktime from ps -ef output instead of RPC the live node to get it

PR Checklist

Please convert it to a draft if any of the following conditions are not met. Reviewers may skip over until all the items are checked:

• [~] Added tests for the changes
• [~] Changed lines covered in coverage report
• Change log has been added to changes/<version>/(feat|fix)-<PR-id>.en.md and .zh.md files
• For internal contributor: there is a jira ticket to track this change
• [~] If there should be document changes, a PR to emqx-docs.git is sent, or a jira ticket is created to follow up
• [~] Schema changes are backward compatible

[coveralls]

Pull Request Test Coverage Report for Build 4164636620

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 22 unchanged lines in 10 files lost coverage.
• Overall coverage increased (+0.04%) to 80.736%

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Files with Coverage Reduction	New Missed Lines	%
apps/emqx/src/bpapi/emqx_bpapi.erl	1	95.83%
apps/emqx/src/emqx_authentication_config.erl	1	81.25%
apps/emqx/src/emqx_channel.erl	1	87.27%
apps/emqx/src/emqx_cm.erl	1	90.83%
apps/emqx/src/emqx_schema.erl	1	90.91%
apps/emqx_connector/src/emqx_connector_jwt_worker.erl	2	92.54%
apps/emqx/src/emqx_logger_textfmt.erl	2	56.82%
apps/emqx/src/emqx_flapping.erl	3	80.85%
apps/emqx/src/emqx_broker.erl	4	83.15%
apps/emqx/src/emqx_reason_codes.erl	6	93.38%

Totals
Change from base Build 4163497345:	0.04%
Covered Lines:	23704
Relevant Lines:	29360

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💛 - Coveralls