Fix FileReader and BufferedReader are not closed in final clause

[wallezhang]

What is the purpose of the change

Fix FileReader and BufferedReader are not closed in final clause. Related issues: #1878 .

Brief change log

(for example:)

• Define the core abstraction and interfaces of the EngineConn Factory;
• Define the core abstraction and interfaces of Executor Manager.

Verifying this change

(Please pick either of the following options)
This change is a trivial rework / code cleanup without any test coverage.
(or)
This change is already covered by existing tests, such as (please describe tests).
(or)
This change added tests and can be verified as follows:
(example:)

• Added tests for submit and execute all kinds of jobs to go through and verify the lifecycles of different EngineConns.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (no)
• Anything that affects deployment: (no)
• The MGS(Microservice Governance Services), i.e., Spring Cloud Gateway, OpenFeign, Eureka.: (no)

Documentation

• Does this pull request introduce a new feature? (no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

Close #1878

[codecov]

Codecov Report

Merging #2226 (2bd67bb) into dev-1.1.3 (d57abbc) will increase coverage by 1.01%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##             dev-1.1.3    #2226      +/-   ##
===============================================
+ Coverage        19.13%   20.14%   +1.01%     
- Complexity         843     1005     +162     
===============================================
  Files              387      425      +38     
  Lines            12120    12926     +806     
  Branches          1816     2035     +219     
===============================================
+ Hits              2319     2604     +285     
- Misses            9558     9977     +419     
- Partials           243      345     +102     

Impacted Files	Coverage Δ
.../scala/org/apache/linkis/scheduler/queue/Job.scala	14.21% <0.00%> (ø)
...linkis/scheduler/conf/SchedulerConfiguration.scala	100.00% <0.00%> (ø)
...e/linkis/scheduler/queue/fifoqueue/FIFOGroup.scala	56.25% <0.00%> (ø)
...ler/queue/fifoqueue/FIFOSchedulerContextImpl.scala	73.07% <0.00%> (ø)
...pache/linkis/scheduler/executer/ExecutorInfo.scala	0.00% <0.00%> (ø)
.../scheduler/exception/SchedulerErrorException.scala	100.00% <0.00%> (ø)
...la/org/apache/linkis/scheduler/queue/JobInfo.scala	0.00% <0.00%> (ø)
...org/apache/linkis/scheduler/SchedulerContext.scala	66.66% <0.00%> (ø)
...e/linkis/scheduler/executer/AbstractExecutor.scala	0.00% <0.00%> (ø)
.../scheduler/queue/parallelqueue/ParallelGroup.scala	0.00% <0.00%> (ø)
... and 28 more

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[peacewong]

LGTM.