Python upgrade to 3.9

[rdeshmukh15]

Description of change

• Python upgrade to 3.9.6 (TDL-24826)
• requests upgrade to 2.31.0

Manual QA steps

• Integration tests are passing locally as below :

INFO **************************************************************************************************************
2024-02-06 06:36:16,166 TapTester - INFO     sync mode exited succesfully
INFO sync mode exited succesfully
2024-02-06 06:36:16,199 TapTester - INFO     OK: tap_exit_status for sync job(3-49-1707201363) is 0
INFO OK: tap_exit_status for sync job(3-49-1707201363) is 0
2024-02-06 06:36:16,199 TapTester - INFO     OK: target_exit_status for job(3-49-1707201363) is 0
INFO OK: target_exit_status for job(3-49-1707201363) is 0
2024-02-06 06:36:16,199 TapTester - INFO     OK: discovery_exit_status for job(3-49-1707201363) is 0
INFO OK: discovery_exit_status for job(3-49-1707201363) is 0
2024-02-06 06:36:16,199 TapTester - INFO     OK: check_exit_status for job(3-49-1707201363) is None
INFO OK: check_exit_status for job(3-49-1707201363) is None
2024-02-06 06:36:16,208 TapTester - INFO     WARN: missing streams: {'items', 'bank_transfers', 'linked_transactions', 'receipts', 'credit_notes', 'invoices', 'overpayments', 'accounts', 'employees', 'manual_journals', 'payments', 'users', 'purchase_orders', 'contacts', 'bank_transactions', 'expense_claims', 'quotes', 'prepayments'}. consider adding them to the test account
INFO WARN: missing streams: {'items', 'bank_transfers', 'linked_transactions', 'receipts', 'credit_notes', 'invoices', 'overpayments', 'accounts', 'employees', 'manual_journals', 'payments', 'users', 'purchase_orders', 'contacts', 'bank_transactions', 'expense_claims', 'quotes', 'prepayments'}. consider adding them to the test account
2024-02-06 06:36:16,208 TapTester - INFO     Output records passing schema validation:
INFO Output records passing schema validation:
2024-02-06 06:36:16,208 TapTester - INFO        journals = 280  pks: ['JournalID']
INFO    journals = 280  pks: ['JournalID']
2024-02-06 06:36:16,209 TapTester - INFO        branding_themes = 3     pks: ['BrandingThemeID']
INFO    branding_themes = 3     pks: ['BrandingThemeID']
2024-02-06 06:36:16,209 TapTester - INFO        contact_groups = 2      pks: ['ContactGroupID']
INFO    contact_groups = 2      pks: ['ContactGroupID']
2024-02-06 06:36:16,209 TapTester - INFO        currencies = 1  pks: ['Code']
INFO    currencies = 1  pks: ['Code']
2024-02-06 06:36:16,209 TapTester - INFO        organisations = 1       pks: ['OrganisationID']
INFO    organisations = 1       pks: ['OrganisationID']
2024-02-06 06:36:16,209 TapTester - INFO        repeating_invoices = 6  pks: ['RepeatingInvoiceID']
INFO    repeating_invoices = 6  pks: ['RepeatingInvoiceID']
2024-02-06 06:36:16,209 TapTester - INFO        tax_rates = 7   pks: ['TaxType']
INFO    tax_rates = 7   pks: ['TaxType']
2024-02-06 06:36:16,210 TapTester - INFO        tracking_categories = 1 pks: ['TrackingCategoryID']
INFO    tracking_categories = 1 pks: ['TrackingCategoryID']
2024-02-06 06:36:16,210 TapTester - INFO     ***** Test Results *****
----------------------------------------------------------------------
Ran 3 tests in 93s

OK  
INFO ***** Test Results *****
----------------------------------------------------------------------
Ran 3 tests in 93s

OK 

Risks

Rollback steps

• revert this branch