Enable setting up of go on ppc64/ppc64le systems.

[kishen-v]

Description:
This change enables to install go on ppc64/ppc64le systems based on endianness.
The existing flow tends to pick ppc64 bundle for both big endian/little endian machines as os.arch() does not have the capability to determine the endianness, which leads to installing an unsupported bundle in the case of ppc64le.

Related issue:
Fixes #517

Check list:

• Mark if documentation changes are required.
• Mark if tests were added or updated to cover the changes.

 go-version-file
      ✓ reads version from go.mod (1 ms)
      ✓ reads version from go.work (1 ms)
      ✓ reads version from .go-version (1 ms)
      ✓ is overwritten by go-version
      ✓ reports a read failure
      ✓ acquires specified architecture of go (2 ms)
      ✓ acquires latest go version with stable go-version input
      ✓ acquires latest go version with oldstable go-version input
      ✓ should return ppc64 when architecture is ppc64 and system is Big Endian <-----
      ✓ should return ppc64le when architecture is ppc64 and system is Little Endian <-----

---------------------|---------|----------|---------|---------|---------------------------------------------------
File                 | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s                                 
---------------------|---------|----------|---------|---------|---------------------------------------------------
All files            |    87.5 |    82.35 |   91.83 |    87.4 |                                                   
 cache-restore.ts    |   81.57 |    57.14 |   66.66 |   81.08 | 54-65                                             
 cache-utils.ts      |     100 |      100 |     100 |     100 |                                                   
 constants.ts        |     100 |      100 |     100 |     100 |                                                   
 installer.ts        |   82.41 |    81.01 |      88 |   82.56 | 55-57,113,182,187-220,343,381-385,413,435-459,474 
 main.ts             |   92.94 |    78.26 |     100 |   92.94 | 56,68-77                                          
 package-managers.ts |     100 |      100 |     100 |     100 |                                                   
 system.ts           |   89.47 |    85.71 |     100 |   89.47 | 41-42                                             
 utils.ts            |     100 |      100 |     100 |     100 |                                                   
---------------------|---------|----------|---------|---------|---------------------------------------------------
Test Suites: 4 passed, 4 total
Tests:       72 passed, 72 total
Snapshots:   0 total
Time:        2.795 s
Ran all test suites.