Changing C_INV to use constants

[rohit2p]

📝 Description

Type: 🪲 bugfix

Changing C_INV to use astropy.constants.c to increased precision.

closes: #2616

🚦 Testing

How did you test these changes?

• Testing pipeline

[tardis-bot]

*beep* *bop*
Hi human,
I ran ruff on the latest commit (c7defc9).
Here are the outputs produced.
Results can also be downloaded as artifacts here.
Summarised output:

2	RET505	[ ] Unnecessary `else` after `return` statement
2	F401  	[*] `tardis.opacities.continuum.continuum_state.ContinuumState` imported but unused
1	RET506	[ ] Unnecessary `else` after `raise` statement
1	D202  	[*] No blank lines allowed after function docstring (found 1)

Complete output(might be large):

tardis/spectrum/formal_integral.py:13:56: F401 [*] `tardis.opacities.continuum.continuum_state.ContinuumState` imported but unused
tardis/spectrum/formal_integral.py:15:5: F401 [*] `tardis.opacities.opacity_state.OpacityState` imported but unused
tardis/spectrum/formal_integral.py:359:13: RET506 Unnecessary `else` after `raise` statement
tardis/spectrum/formal_integral.py:424:9: D202 [*] No blank lines allowed after function docstring (found 1)
tardis/spectrum/formal_integral.py:717:5: RET505 Unnecessary `else` after `return` statement
tardis/spectrum/formal_integral.py:753:5: RET505 Unnecessary `else` after `return` statement
Found 6 errors.
[*] 3 fixable with the `--fix` option.

[tardis-bot]

*beep* *bop*

Hi, human.

I'm the @tardis-bot and couldn't find your records in my database. I think we don't know each other, or you changed your credentials recently.

Please add your name and email to .mailmap in your current branch and push the changes to this pull request.

In case you need to map an existing alias, follow this example.