Notes on v11.10.0:
- it does support openssl@1.1.1
- it ships with libuv 1.26.0 (1.24.0 in guix)
- some previously bundled deps are absent from tarball
- NODE_EXPERIMENTAL_HTTP is a no-op / always defined

There is an issue with the alternative http parser, `llhttp`. The 
choice of parser is at runtime, and one compile flag, 
--shared-http-parser, configures both. Building fails with:

```
g++ -o 
/tmp/guix-build-node-11.10.0.drv-0/node-v11.10.0/out/Release/obj.target/node_lib/src/node_http_parser_llhttp.o 
../src/node_http_parser_llhttp.cc '-DNODE_ARCH="x64"' 
'-DNODE_PLATFORM="linux"' '-DNODE_WANT_INTERNALS=1' 
'-DV8_DEPRECATION_WARNINGS=1' '-DNODE_OPENSSL_SYSTEM_CERT_PATH=""' 
'-DHAVE_INSPECTOR=1' '-DNODE_REPORT' '-D__POSIX__' 
'-DNODE_USE_V8_PLATFORM=1' '-DNODE_HAVE_I18N_SUPPORT=1' 
'-DHAVE_OPENSSL=1' -I../src 
-I/tmp/guix-build-node-11.10.0.drv-0/node-v11.10.0/out/Release/obj/gen 
-I/tmp/guix-build-node-11.10.0.drv-0/node-v11.10.0/out/Release/obj/gen/include 
-I/tmp/guix-build-node-11.10.0.drv-0/node-v11.10.0/out/Release/obj/gen/src 
-I../deps/histogram/src -I../deps/v8/include 
-I../deps/brotli/c/include  -pthread -Wall -Wextra 
-Wno-unused-parameter -m64 -Wall -Wextra -Wno-unused-parameter -O3 
-fno-omit-frame-pointer -fno-rtti -fno-exceptions -std=gnu++1y 
-MMD -MF 
/tmp/guix-build-node-11.10.0.drv-0/node-v11.10.0/out/Release/.deps//tmp/guix-build-node-11.10.0.drv-0/node-v11.10.0/out/Release/obj.target/node_lib/src/node_http_parser_llhttp.o.d.raw 
-c
In file included from ../src/node_http_parser_impl.h:41:0,
                 from ../src/node_http_parser_llhttp.cc:3:
../src/http_parser_adaptor.h:5:21: fatal error: llhttp.h: No such 
file or directory
```

AFAIU, either llhttp has to be made a separate package and listed 
in inputs, or http-parser linked statically. Or should the missing 
-I../deps/llhttp/include argument be passed here somehow -- maybe 
patching node.gypi?

I have not tried to build 10.15.1(LTS), which presumably has the 
same issues as in #32095.

Also, should previous version branches (8.x, 9.x) be kept in guix?

In the meantime, these minor updates work fine: