Remove Ktor dependency

[MGaetan89]

Pull request

Description

This PR removes the dependency on Ktor from Pillarbox.

Changes made

• Remove Ktor dependency.
• Create RequestSender to parse from/to JSON and send network requests.
• Remove HttpResultException.
• Remove PillarboxHttpClient.
• Remove Ktor rule from Dependabot.

Checklist

• APIs have been properly documented (if relevant).
• The documentation has been updated (if relevant).
• New unit tests have been written (if relevant).
• The demo has been updated (if relevant).

[github-actions]

Code Coverage

Overall Project	48.91% -0.33%	🟢
Files changed	75.7%	🟢

Module	Coverage
:pillarbox-core-business	81.04% -0.54%	🟢
:pillarbox-player	57.35% -0.44%	🟢
Kover Gradle Plugin XML report for :plugins	7.21%	🟢

Files

Module	File	Coverage
:pillarbox-core-business	HttpMediaCompositionService.kt	100%	🟢
	ImageScalingService.kt	100%	🟢
	SRGErrorMessageProvider.kt	100%	🟢
	AkamaiTokenDataSource.kt	100%	🟢
	SRGAssetLoader.kt	90.02% -3.06%	🟢
	SRGAssetLoaderConfig.kt	83.33% -9.85%	🟢
	AkamaiTokenProvider.kt	70.53% -0.53%	🟢
:pillarbox-player	HttpResultException.kt	100%	🟢
	JsonSerializer.kt	100%	🟢
	RequestSender.kt	91.16% -8.84%	🟢
	PillarboxBuilder.kt	78.55% -2.77%	🟢
	MonitoringMessageHandler.kt	4.02% -24.71%	🟢
Kover Gradle Plugin XML report for :plugins	PillarboxAndroidLibraryPublishingPlugin.kt	0%	🟢