feat: VulnerabilityAnalysis properties for issued/updated datetime

[indiVar0508]

fixed: #791

add first_issued and last_updated to VulnerabilityAnalysis, update test to verify this

[jkowalleck]

almost perfect.

a thing that is needed since the latest v9 release:

• please add the new properties to the __comparable_tuple()

[indiVar0508]

ahh so close, I felt i was missing something 😄
test results logs

Files skipped (0):
  flake8: OK (2.55=setup[0.04]+cmd[0.00,0.92,0.57,1.01] seconds)
  mypy-current: OK (2.25=setup[0.01]+cmd[0.00,0.86,0.53,0.84] seconds)
  mypy-lowest: OK (1.93=setup[0.01]+cmd[0.00,0.61,0.53,0.78] seconds)
  py313-allExtras: SKIP (0.14 seconds)
  py313-noExtras: SKIP (0.36 seconds)
  py312-allExtras: SKIP (0.15 seconds)
  py312-noExtras: SKIP (0.14 seconds)
  py311-allExtras: SKIP (0.20 seconds)
  py311-noExtras: SKIP (0.11 seconds)
  py310-allExtras: OK (8.14=setup[0.02]+cmd[0.00,0.60,0.51,7.00] seconds)
  py310-noExtras: OK (6.82=setup[0.01]+cmd[0.00,0.58,0.51,5.71] seconds)
  py39-allExtras: SKIP (0.10 seconds)
  py39-noExtras: SKIP (0.09 seconds)
  py38-allExtras: SKIP (0.09 seconds)
  py38-noExtras: SKIP (0.11 seconds)
  bandit: OK (2.63=setup[0.01]+cmd[0.00,0.80,0.51,1.31] seconds)
  congratulations :) (25.86 seconds)