[ci] Upgrade codeql github action to v2

[frankfliu]

Change-Id: Ia639fe602221439ad9d2f95365c3fff4ec096dad

Description

Brief description of what this PR is about

• If this change is a backward incompatible change, why must this change be made?
• Interesting edge cases to note here

[codecov-commenter]

Codecov Report

Merging #1730 (e2181e1) into master (bb5073f) will decrease coverage by 1.54%.
The diff coverage is 70.73%.

@@             Coverage Diff              @@
##             master    #1730      +/-   ##
============================================
- Coverage     72.08%   70.54%   -1.55%     
- Complexity     5126     5536     +410     
============================================
  Files           473      525      +52     
  Lines         21970    24618    +2648     
  Branches       2351     2662     +311     
============================================
+ Hits          15838    17367    +1529     
- Misses         4925     5928    +1003     
- Partials       1207     1323     +116     

Impacted Files	Coverage Δ
api/src/main/java/ai/djl/modality/cv/Image.java	69.23% <ø> (-4.11%)	⬇️
...rc/main/java/ai/djl/modality/cv/output/Joints.java	71.42% <ø> (ø)
.../main/java/ai/djl/modality/cv/output/Landmark.java	100.00% <ø> (ø)
...main/java/ai/djl/modality/cv/output/Rectangle.java	72.41% <0.00%> (ø)
...i/djl/modality/cv/translator/BigGANTranslator.java	21.42% <ø> (-5.24%)	⬇️
...odality/cv/translator/BigGANTranslatorFactory.java	33.33% <0.00%> (+8.33%)	⬆️
...nslator/InstanceSegmentationTranslatorFactory.java	14.28% <0.00%> (-3.90%)	⬇️
.../ai/djl/modality/cv/translator/YoloTranslator.java	8.33% <0.00%> (-0.50%)	⬇️
.../modality/cv/translator/YoloTranslatorFactory.java	8.33% <0.00%> (-1.67%)	⬇️
...i/djl/modality/cv/translator/YoloV5Translator.java	5.38% <0.00%> (-0.31%)	⬇️
... and 287 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d619d27...e2181e1. Read the comment docs.