Installation fails with compilation error

When trying to install `aws-lambda-ric` on a recent Alpine Linux with the following Dockerfile

```Dockerfile
FROM alpine:3.14

ARG FUNCTION_DIR="/function"

RUN apk add g++ make cmake unzip libtool curl-dev automake autoconf nodejs npm

WORKDIR ${FUNCTION_DIR}
RUN npm install aws-lambda-ric
```

a `docker run` exits with the following error messages in the end:

```
#7 82.55 npm ERR! -- The CXX compiler identification is GNU 10.3.1
#7 82.55 npm ERR! -- Detecting CXX compiler ABI info
#7 82.55 npm ERR! -- Detecting CXX compiler ABI info - done
#7 82.55 npm ERR! -- Check for working CXX compiler: /usr/bin/c++ - skipped
#7 82.55 npm ERR! -- Detecting CXX compile features
#7 82.55 npm ERR! -- Detecting CXX compile features - done
#7 82.55 npm ERR! -- Found CURL: /usr/lib/libcurl.so (found version "7.77.0")
#7 82.55 npm ERR! -- Configuring done
#7 82.55 npm ERR! -- Generating done
#7 82.55 npm ERR! -- Build files have been written to: /function/node_modules/aws-lambda-ric/deps/aws-lambda-cpp-0.2.6/build
#7 82.55 npm ERR! [ 20%] Building CXX object CMakeFiles/aws-lambda-runtime.dir/src/logging.cpp.o
#7 82.55 npm ERR! [ 40%] Building CXX object CMakeFiles/aws-lambda-runtime.dir/src/runtime.cpp.o
#7 82.55 npm ERR! [ 60%] Building CXX object CMakeFiles/aws-lambda-runtime.dir/src/backward.cpp.o
#7 82.55 npm ERR! *** Do not use buildconf. Instead, just use: autoreconf -fi
#7 82.55 npm ERR! configure.ac:120: installing './compile'
#7 82.55 npm ERR! configure.ac:125: installing './missing'
#7 82.55 npm ERR! docs/examples/Makefile.am: installing './depcomp'
#7 82.55 npm ERR! ./configure: line 1: /usr/bin/file: not found
#7 82.55 npm ERR! configure: WARNING: zlib disabled
#7 82.55 npm ERR! configure: WARNING: Cannot find libraries for LDAP support: LDAP disabled
#7 82.55 npm ERR! configure: WARNING: SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more.
#7 82.55 npm ERR! configure: WARNING: Use --with-openssl, --with-gnutls, --with-wolfssl, --with-mbedtls, --with-nss, --with-schannel, --with-secure-transport, --with-mesalink, --with-amissl, --with-bearssl or --with-rustls to address this.
#7 82.55 npm ERR! configure: WARNING: libpsl was not found
#7 82.55 npm ERR! configure: WARNING: libgsasl was not found
#7 82.55 npm ERR! configure: WARNING: Cannot find libraries for IDN support: IDN disabled
#7 82.55 npm ERR! configure: WARNING: disabling built-in manual
#7 82.55 npm ERR! In file included from /function/node_modules/aws-lambda-ric/deps/aws-lambda-cpp-0.2.6/src/backward.cpp:26:
#7 82.55 npm ERR! /function/node_modules/aws-lambda-ric/deps/aws-lambda-cpp-0.2.6/include/backward.h:238:22: fatal error: execinfo.h: No such file or directory
#7 82.55 npm ERR! 238 | # include
#7 82.55 npm ERR! | ^~~~~~~~~~~~
#7 82.55 npm ERR! compilation terminated.
#7 82.55 npm ERR! make[2]: *** [CMakeFiles/aws-lambda-runtime.dir/build.make:104: CMakeFiles/aws-lambda-runtime.dir/src/backward.cpp.o] Error 1
#7 82.55 npm ERR! make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/aws-lambda-runtime.dir/all] Error 2
#7 82.55 npm ERR! make: *** [Makefile:136: all] Error 2
#7 82.61
#7 82.61 npm ERR! A complete log of this run can be found in:
#7 82.61 npm ERR! /root/.npm/_logs/2021-06-21T12_32_55_474Z-debug.log
------
executor failed running [/bin/sh -c npm install aws-lambda-ric]: exit code: 2
```

Also see awslabs/aws-lambda-cpp#124.