test(node): Relax an assertion

ORT's Npm integration maps Npm's error output to a set of issues. In
case of a malformed `package.json`, this yields a single issue with the
currently used Npm version. A more recent Npm versions, 10.1.0, yields
two issues. Also the wording of the issue to be matched slightly
differs.

So, relax the test assertion such that it does not break when upgrading
Npm to 10.1.0 which is needed in order to upgrade Node to version 20.

Signed-off-by: Frank Viernau <frank_viernau@epam.com>

plugins/package-managers/node/src/funTest/kotlin/NpmFunTest.kt

@@ -21,9 +21,11 @@ package org.ossreviewtoolkit.plugins.packagemanagers.node
 
 import io.kotest.core.spec.style.WordSpec
 import io.kotest.engine.spec.tempdir
+import io.kotest.inspectors.forAtLeastOne
 import io.kotest.matchers.collections.shouldHaveSize
 import io.kotest.matchers.should
 import io.kotest.matchers.shouldBe
+import io.kotest.matchers.shouldHave
 import io.kotest.matchers.string.shouldContain
 
 import org.ossreviewtoolkit.analyzer.managers.create
@@ -97,11 +99,10 @@ class NpmFunTest : WordSpec({
 
             val result = create("NPM", allowDynamicVersions = true).resolveSingleProject(definitionFile)
 
-            result.issues shouldHaveSize 1
-            with(result.issues.first()) {
-                source shouldBe "NPM"
-                severity shouldBe Severity.ERROR
-                message shouldContain "Unexpected token \"<\" (0x3C) in JSON at position 0 while parsing \"<>\""
+            result.issues.forAtLeastOne {
+                it.source shouldBe "NPM"
+                it.severity shouldBe Severity.ERROR
+                it.message shouldContain "Unexpected token"
             }
         }