Replace 5% settlement card with an anon address

[mandar-brave]

Transactions sent to the non-anon card are displaying the sender.
Replace these:
const char kFeeAddressStaging[] = "7ab330ae-b7a6-4845-8f07-baab68848e4e";
const char kFeeAddressProduction[] = "532857d5-ff8b-4ca7-b9ef-5b1e40178340";

@NejcZdovc

[GeetaSarvadnya]

Verification passed on

Brave	0.70.93 Chromium: 76.0.3809.132 (Official Build) beta (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

(Verified in fully KYC'd staging uphold account)

• Verified the test plan from Updates 5% cards with anon addresses brave-core#3267
• 5% card balance before sending One time tip to a verified pub from fully KYC'd uphold account
  
• 5% card balance after sending a one-time tip to verified pubs from fully KYC'd uphold account and the transaction history doesn't show pubs name in the transaction which is expected as per the test plan
  

[LaurenWags]

Verified passed with

Brave	0.69.130 Chromium: 77.0.3865.90 (Official Build) (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	macOS Version 10.13.6 (Build 17G5019)

• Requested team member with access to 5% prod card to review our tips and confirm that the 5% fee was anonymized as expected.
• Confirmed on staging 5% card that the 5% fee was anonymized as expected. Verified test plan from Updates 5% cards with anon addresses brave-core#3267

Verification passed on

Brave	0.69.130 Chromium: 77.0.3865.90 (Official Build) (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	Ubuntu 18.04 LTS

• Requested team member with access to 5% prod card to review our tips and confirm that the 5% fee was anonymized as expected.
• Confirmed on staging 5% card that the 5% fee was anonymized as expected. Verified test plan from Updates 5% cards with anon addresses brave-core#3267