[BUGFIX] Update ViewHelpers and deprecated calls

ext_emconf.php

@@ -22,7 +22,7 @@ $EM_CONF[$_EXTKEY] = [
 	'version' => '5.7.1',
 	'constraints' => [
 		'depends' => [
-			'typo3' => '7.6.0-9.5.99',
+			'typo3' => '8.7.0-9.5.99',
 			'php' => '7.0.0-7.3.99',
 		],
 		'conflicts' => [],

ext_localconf.php

@@ -72,7 +72,7 @@ if (\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('sg_ajax')) {
 
 // hook registration
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass'][] =
-	'EXT:sg_news/Classes/TCA/TcaProvider.php:SGalinski\SgNews\TCA\TcaProvider';
+	'SGalinski\SgNews\TCA\TcaProvider';
 
 // Xclasses
 $GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects']['TYPO3\CMS\Core\Page\PageRenderer'] =