Rename Http to HTTP and comment

client/client_test.go

client/httpclient_test.go

client/httpsclient_test.go

client/testserver/testserver.go

cmd/gitlab-sshd/acceptance_test.go

internal/command/authorizedkeys/authorized_keys_test.go

internal/command/discover/discover_test.go

internal/command/gitauditevent/audit_test.go

internal/command/githttp/pull_test.go

internal/command/githttp/push_test.go

internal/command/healthcheck/healthcheck_test.go

internal/command/lfsauthenticate/lfsauthenticate_test.go

internal/command/lfstransfer/lfstransfer_test.go

...l/command/personalaccesstoken/personalaccesstoken_test.go

internal/command/receivepack/gitalycall_test.go

internal/command/receivepack/receivepack_test.go

...rnal/command/shared/accessverifier/accessverifier_test.go

internal/command/shared/customaction/customaction_test.go

internal/command/twofactorrecover/twofactorrecover_test.go

internal/command/twofactorverify/twofactorverify_test.go