https://github.com/open-telemetry/opentelemetry-cpp/commit/3e4b7d3c73d5c117069fb9becb7e2145dc06608d

Modified to apply cleanly

From 3e4b7d3c73d5c117069fb9becb7e2145dc06608d Mon Sep 17 00:00:00 2001
From: Marc Alff <marc.alff@oracle.com>
Date: Fri, 8 Mar 2024 09:35:12 +0100
Subject: [PATCH] [BUILD] Bump cmake version to 3.9 (#2581)

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.9)
 
 # See https://cmake.org/cmake/help/v3.3/policy/CMP0057.html required by certain
 # versions of gtest
