Change wayback machine endpoint to brave-api.archive.org

[simonhong]

Change wayback query url from https://archive.org/wayback/available?url=" to https://brave-api.archive.org/wayback/available?url="

Verification step with new endpoint.

1. Go to https://brave.com/bo
2. Check wayback infobar is shown
3. Click the check button and throbber animation is started
4. Check an archived version is loaded

[GeetaSarvadnya]

Verification passed on

Brave	1.4.89 Chromium: 80.0.3987.106 (Official Build) beta (64-bit)
Revision	f68069574609230cf9b635cd784cfb1bf81bb53a-refs/branch-heads/3987@{#882}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

• Verified the test plan from Change wayback machine endpoint brave-core#4507
  

Verification PASSED on macOS 10.15.3 x64 using the following build:

Brave	1.4.93 Chromium: 80.0.3987.116 (Official Build) (64-bit)
Revision	dc00a510e4c2ae25c4d084cc3d946fc782249224-refs/branch-heads/3987@{#917}
OS	macOS Version 10.15.3 (Build 19D76)

• Verified the STR outlined under Change wayback machine endpoint brave-core#4507

Verification passed on

Brave	1.4.94 Chromium: 80.0.3987.116 (Official Build) (64-bit)
Revision	dc00a510e4c2ae25c4d084cc3d946fc782249224-refs/branch-heads/3987@{#917}
OS	Ubuntu 18.04 LTS

• Verified the test plan from Change wayback machine endpoint brave-core#4507