tests [python]: Fix NoCondaAndVenAsSystemPythonsTest.

It is perfectly valid to have conda base python injected as `PythonBinaryPath` .

However, it should not be system python


(cherry picked from commit 40f81a8897927c00eb49d2ed94ec93a422f58cdf)

IJ-CR-220955

GitOrigin-RevId: cf75731a694dd693fb2ec41abf432ad9065b3b24

python/python-test-env/junit5/src/com/intellij/python/community/junit5Tests/framework/conda/PyEnvTestCaseWithConda.kt

@@ -20,6 +20,9 @@ class PyEnvTestExample {
   
   @Test
   fun testSdk(@PythonSdk sdk: Sdk) { ... }
+
+  @Test // This is a base conda path!
+  fun testSdk(@PythonBinaryPath pythonExe: PythonBinary) { ... }
 }
  * ```
  */

python/python-test-env/junit5/src/com/intellij/python/junit5Tests/framework/env/PythonBinaryPath.kt

@@ -1,6 +1,8 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.python.junit5Tests.framework.env
 
+import com.intellij.python.community.junit5Tests.framework.conda.PyEnvTestCaseWithConda
+
 /**
  * Mark [java.nio.file.Path] test parameter to get first python binary for env test.
  *
@@ -9,6 +11,8 @@ package com.intellij.python.junit5Tests.framework.env
  *   @Test
  *   fun checkPythonPath(@PythonSdkPath path: PythonBinary) // Path is python.exe for example
  * ```
+ *
+ * When used with [PyEnvTestCaseWithConda], ponts to conda base path.
  */
 
 @Target(AnnotationTarget.VALUE_PARAMETER)