chore(main): release 2.0.0

Bot (:robot:) requested to create a new release on main

paypal: Switches the immediate unit of coin from USD to VND
execute printing request: executing a printing request is now restricted to students only

coin: add bonus coin for each 100,000 VND base on configurarion (c53bef4)
coin: implement new handler and API dor bonusCoinPer100000VND configuration (78b5f60)
coin: implement new handler and API for coin to VND configuration (b2edfad)
configuration printing: save file after approving configuration on Minio for preview (f3a0a35)
configuration: implement serving fee configuration and missing get configuration APIs (456d240)

coin: convert from amount VND to USD rounded to two decimal places (8466bcf)
coin: round VND conversion from USD to avoid missing bonus coin (4f8d8f3)
execute printing request: decrease appropriate user's remain coins base on printing request (83074d2)
permission: change permission of get configuration APIs to be accessible by all roles (56b1ac6)
printer: let CUPS choose a printer (7073e3d)
printing request: adjust coins and pages with changes in amount of pages when config changes (6968c22)
printing: change synchronize handler of execute printing request to use a for loop (68495ae)
printing: send only buffer to printer in development environment (7d0a346)

paypal: change amount of create PayPal Order to VND; use VND as immediate unit of coin (cd79516)

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