Need to upgrade package to Guzzlehttp V 7 and above

[careerhub-source]

The package bring conflict

Problem 1
- samerior/mobile-money 2.x-dev requires guzzlehttp/guzzle ^6.3 -> found guzzlehttp/guzzle[6.3.0, ..., 6.5.x-dev] but it conflicts with your root composer.json require (^7.0.1).
- samerior/mobile-money[v2.2.0, ..., v2.2.1] require guzzlehttp/guzzle ^6.4 -> found guzzlehttp/guzzle[6.4.0, ..., 6.5.x-dev] but it conflicts with your root composer.json require (^7.0.1).
- Root composer.json requires samerior/mobile-money ^2.2 -> satisfiable by samerior/mobile-money[v2.2.0, v2.2.1, 2.x-dev].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for
packages currently locked to specific versions.