nodejs: upgrade 20.17.0 -> 20.18.0

License checksum change due to whitespace changes.
https://github.com/nodejs/node/commit/1dfd238781

libatomic.patch change due to changes in node.gyp
https://github.com/nodejs/node/commit/25c788009f1fa7a392af51cb97d0a55f0f4a6983

Changelog :
https://github.com/nodejs/node/blob/main/doc/changelogs/CHANGELOG_V20.md#20.18.0

Signed-off-by: Jason Schonberg <schonm@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/nodejs/nodejs/libatomic.patch

@@ -29,7 +29,7 @@ index b425f443..f296f35c 100644
 @@ -487,7 +487,18 @@
          ],
        }],
-       ['OS == "linux" and llvm_version != "0.0"', {
+       ['OS=="linux" and clang==1', {
 -        'libraries': ['-latomic'],
 +        'target_conditions': [
 +           ['_toolset=="host"', {