[TASK] Used fixed versions for most development dependencies (#1475)

We don't want our build to break when a new version of a development
dependency like PHPUnit or PHPStan gets released. Instead, we want to
be able to examine the (possibly changed) behavior in the pull request
by Dependabot that updates this dependency.

composer.json

@@ -47,31 +47,31 @@
 		"typo3/cms-frontend": "^11.5.4 || ^12.4.2"
 	},
 	"require-dev": {
-		"ergebnis/composer-normalize": "^2.43.0",
-		"friendsofphp/php-cs-fixer": "^3.64.0",
-		"helmich/typo3-typoscript-lint": "^3.1.1",
-		"icanhazstring/composer-unused": "^0.8.11",
-		"php-parallel-lint/php-parallel-lint": "^1.4",
-		"phpmd/phpmd": "^2.15.0",
-		"phpstan/extension-installer": "^1.4.3",
-		"phpstan/phpstan": "^1.12.5",
-		"phpstan/phpstan-phpunit": "^1.4.0",
-		"phpstan/phpstan-strict-rules": "^1.6.1",
-		"phpunit/phpunit": "^9.6.20",
-		"saschaegerer/phpstan-typo3": "^1.10.2",
-		"seld/jsonlint": "^1.11.0",
-		"spaze/phpstan-disallowed-calls": "^3.4",
-		"squizlabs/php_codesniffer": "^3.10.3",
-		"ssch/typo3-rector": "^2.7.0",
-		"ssch/typo3-rector-testing-framework": "^2.0.1",
+		"ergebnis/composer-normalize": "2.43.0",
+		"friendsofphp/php-cs-fixer": "3.64.0",
+		"helmich/typo3-typoscript-lint": "3.1.1",
+		"icanhazstring/composer-unused": "0.8.11",
+		"php-parallel-lint/php-parallel-lint": "1.4.0",
+		"phpmd/phpmd": "2.15.0",
+		"phpstan/extension-installer": "1.4.3",
+		"phpstan/phpstan": "1.12.5",
+		"phpstan/phpstan-phpunit": "1.4.0",
+		"phpstan/phpstan-strict-rules": "1.6.1",
+		"phpunit/phpunit": "9.6.20",
+		"saschaegerer/phpstan-typo3": "1.10.2",
+		"seld/jsonlint": "1.11.0",
+		"spaze/phpstan-disallowed-calls": "3.4.0",
+		"squizlabs/php_codesniffer": "3.10.3",
+		"ssch/typo3-rector": "2.7.0",
+		"ssch/typo3-rector-testing-framework": "2.0.1",
 		"symfony/console": "^5.4.44 || ^6.4.12 || ^7.1.5",
 		"symfony/translation": "^5.4.44 || ^6.4.12 || ^7.1.5",
 		"symfony/yaml": "^5.4.44 || ^6.4.12 || ^7.1.5",
-		"tomasvotruba/cognitive-complexity": "^0.2.3",
-		"tomasvotruba/type-coverage": "^0.3.1",
+		"tomasvotruba/cognitive-complexity": "0.2.3",
+		"tomasvotruba/type-coverage": "0.3.1",
 		"typo3/cms-fluid-styled-content": "^11.5.4 || ^12.4.2",
-		"typo3/coding-standards": "^0.6.1 || ^0.8.0",
-		"typo3/testing-framework": "^7.1.0",
+		"typo3/coding-standards": "0.6.1 || 0.8.0",
+		"typo3/testing-framework": "7.1.0",
 		"webmozart/assert": "^1.11.0"
 	},
 	"replace": {