feat: add redshift connector

[bastienboutonnet]

Description

Adds an engine connection class to connect to Redshift

How was the change tested

Untested as I have no access to Redshift but will be tested by a member of the community.

Issue Information

Resolves #171

Checklist

(Ideally, all boxes are checked by the time we merged the PR, if you don't know how to do any of these don't hesitate to say so in the PR and we'll help you out.)

• I formatted my PR name according to CONTRIBUTING.md
• I added a news fragment to help populating the changelog as encouraged in CONTRIBUTING.md
• I added "Closes #<issue_number>" in the "Issue Information" section (if no issue, feel free to tick thick the box anyway).

[codecov]

Codecov Report

Merging #229 (266c890) into dev/0.1.0 (329e1d0) will decrease coverage by 0.05%.
The diff coverage is 86.66%.

@@              Coverage Diff              @@
##           dev/0.1.0     #229      +/-   ##
=============================================
- Coverage      82.53%   82.48%   -0.06%     
=============================================
  Files             19       20       +1     
  Lines           1197     1205       +8     
=============================================
+ Hits             988      994       +6     
- Misses           209      211       +2     

Flag	Coverage Δ
unittests	82.48% <86.66%> (-0.06%)	⬇️

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Impacted Files	Coverage Δ
dbt_sugar/core/connectors/redshift_connector.py	71.42% <71.42%> (ø)
dbt_sugar/__init__.py	100.00% <100.00%> (ø)
dbt_sugar/core/_version.py	100.00% <100.00%> (ø)
dbt_sugar/core/clients/dbt.py	95.00% <100.00%> (ø)
dbt_sugar/core/task/doc.py	67.85% <100.00%> (+0.16%)	⬆️

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[bastienboutonnet]

pre-commit.ci run

[sourcery-ai]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 0.20%.

Quality metrics	Before	After	Change
Complexity	4.89 ⭐	4.91 ⭐	0.02 👎
Method Length	64.00 🙂	64.21 🙂	0.21 👎
Working memory	9.40 🙂	9.48 🙂	0.08 👎
Quality	68.15% 🙂	67.95% 🙂	-0.20% 👎

Other metrics	Before	After	Change
Lines	650	651	1

Changed files	Quality Before	Quality After	Quality Change
dbt_sugar/init.py	100.00% ⭐	100.00% ⭐	0.00%
dbt_sugar/core/_version.py	100.00% ⭐	100.00% ⭐	0.00%
dbt_sugar/core/clients/dbt.py	75.61% ⭐	75.17% ⭐	-0.44% 👎
dbt_sugar/core/task/doc.py	64.13% 🙂	64.06% 🙂	-0.07% 👎

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
dbt_sugar/core/task/doc.py	DocumentationTask.check_tests	12 🙂	144 😞	15 😞	44.18% 😞	Try splitting into smaller methods. Extract out complex expressions
dbt_sugar/core/clients/dbt.py	DbtProject.__init__.read_project.DbtProfile.read_profile	12 🙂	127 😞	12 😞	50.39% 🙂	Try splitting into smaller methods. Extract out complex expressions
dbt_sugar/core/task/doc.py	DocumentationTask.update_model	14 🙂	96 🙂	13 😞	51.12% 🙂	Extract out complex expressions
dbt_sugar/core/task/doc.py	DocumentationTask.document_columns	5 ⭐	149 😞	12 😞	54.43% 🙂	Try splitting into smaller methods. Extract out complex expressions
dbt_sugar/core/task/doc.py	DocumentationTask.update_model_description	7 ⭐	81 🙂	13 😞	59.61% 🙂	Extract out complex expressions

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The emojis denote the absolute quality of the code:

• ⭐ excellent
• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

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