feat: fix for Pylint(W1514:unspecified-encoding)

[hamirmahal]

Closes #607

[hamirmahal]

Without this removal, tests fail with

>               assert_that(len(diagnostics), is_(greater_than(0)))
E               AssertionError: 
E               Expected: a value greater than <0>
E                    but: was <0>

src/test/python_tests/test_code_actions.py:406: AssertionError
------------------------------------------------------------------------------------------ Captured log call ------------------------------------------------------------------------------------------
ERROR    concurrent.futures:_base.py:344 exception calling callback for <Future at 0x729661915600 state=finished returned NoneType>

[hamirmahal]

Without this change

Screencast.from.04-28-2025.09.10.45.PM.webm

[hamirmahal]

With this change

Screencast.from.04-28-2025.08.57.49.PM.webm

[hamirmahal]

@karthiknadig are there any changes you'd like me to make here?

[hamirmahal]

@eleanorjboyd are there any changes you'd like me to make here?

[karthiknadig]

I think we need a few more cases:

open(path, 'r', newline='\n')  => open(path, 'r', encoding='utf-8', newline='\n')

cases for multi line open:

open(
path,
'r'
)

open(
path,
'r',
newline='\n',
)