fix(deps): resolve vulnerability in axios version (#256)

This commit forces a release for the updated axios version that
resolved a vulnerability. It also includes build changes to stop
testing on Node 14, which had EOL 6 months ago, start testing on
Node 20, and document that Node 14 is technically no longer
guaranteed, even though it is supported.

This also fixes a test to be more flexible on different Node
versions, as `JSON.parse()` throws slightly different errors
on Node 18 vs Node 20.

Signed-off-by: Dustin Popp <dpopp07@gmail.com>

.travis.yml

@@ -3,9 +3,9 @@ language: node_js
 dist: jammy
 
 node_js:
-- 14
 - 16
 - 18
+- 20
 
 cache:
   npm: false

README.md

@@ -14,6 +14,7 @@ This project contains core functionality required by Node.js code generated by t
 
 ## Prerequisites
 - Node.js version 14 or newer
+- Note that v14 is technically *supported* but not officially *guaranteed* as we only test on v16 and higher
 
 ## Usage
 This package exports a single object containing a number of modules as top level properties.

test/unit/request-wrapper.test.js

@@ -707,7 +707,7 @@ describe('sendRequest', () => {
     mockAxiosInstance.mockResolvedValue(axiosResolveValue);
 
     await expect(requestWrapperInstance.sendRequest(parameters)).rejects.toThrow(
-      'Error processing HTTP response: SyntaxError: Unexpected end of JSON input'
+      'Error processing HTTP response: SyntaxError'
     );
     expect(verboseLogSpy).toHaveBeenCalledTimes(2);
     expect(verboseLogSpy.mock.calls[0][0]).toBe(
@@ -969,7 +969,7 @@ describe('formatError', () => {
 
     expect(() => {
       requestWrapperInstance.formatError(newAxiosError);
-    }).toThrow('Error processing HTTP response: SyntaxError: Unexpected end of JSON input');
+    }).toThrow('Error processing HTTP response: SyntaxError');
     expect(verboseLogSpy).toHaveBeenCalledTimes(2);
     expect(verboseLogSpy.mock.calls[0][0]).toBe(
       'Response body was supposed to have JSON content but JSON parsing failed.'