Fix LD_LIBRARY_PATH issue for unwindingReport tasks on musl

Apply the same LD_LIBRARY_PATH removal fix to runUnwindingValidator
and unwindingReport tasks that was previously applied to test tasks.

Without this fix, JDK 11 + musl systems fail with cross-JDK library
conflicts when LD_LIBRARY_PATH causes the launcher to load the wrong
libjli.so library. Removing LD_LIBRARY_PATH allows RPATH to work
correctly and load the correct library from $ORIGIN/../lib/jli.

Tasks fixed:
- runUnwindingValidator{Config} (Exec tasks)
- unwindingReport{Config} (Exec tasks)

Resolves unwinding report failures on musl CI builds.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: jbachorik

build-logic/conventions/src/main/kotlin/com/datadoghq/profiler/ProfilerTestPlugin.kt

@@ -454,6 +454,15 @@ class ProfilerTestPlugin : Plugin<Project> {
                             runTask.environment(key, value)
                         }
                     }
+
+                    // CRITICAL FIX: Remove LD_LIBRARY_PATH to let RPATH work correctly
+                    runTask.doFirst {
+                        val currentLdLibPath = (runTask.environment["LD_LIBRARY_PATH"] as? String) ?: System.getenv("LD_LIBRARY_PATH")
+                        if (!currentLdLibPath.isNullOrEmpty()) {
+                            project.logger.info("Removing LD_LIBRARY_PATH to prevent cross-JDK library conflicts (was: $currentLdLibPath)")
+                            runTask.environment.remove("LD_LIBRARY_PATH")
+                        }
+                    }
                 }
 
                 // Create report task using Exec to bypass Gradle's toolchain system
@@ -492,6 +501,15 @@ class ProfilerTestPlugin : Plugin<Project> {
                         }
                     }
                     reportTask.environment("CI", project.hasProperty("CI") || System.getenv("CI")?.toBoolean() ?: false)
+
+                    // CRITICAL FIX: Remove LD_LIBRARY_PATH to let RPATH work correctly
+                    reportTask.doFirst {
+                        val currentLdLibPath = (reportTask.environment["LD_LIBRARY_PATH"] as? String) ?: System.getenv("LD_LIBRARY_PATH")
+                        if (!currentLdLibPath.isNullOrEmpty()) {
+                            project.logger.info("Removing LD_LIBRARY_PATH to prevent cross-JDK library conflicts (was: $currentLdLibPath)")
+                            reportTask.environment.remove("LD_LIBRARY_PATH")
+                        }
+                    }
                 }
             }
         }