Fix tests on Node 20.8.0+ (#603)

* Switch back to latest Node 20

Signed-off-by: Chad Wilson <chadw@thoughtworks.com>

* Correct tests with Node 20.8.0+

Switch to mock-tmp which avoids attempting to mock the node `fs` package, which is increasingly difficult, and instead just creates
a dummy file structure in temp directories.

Signed-off-by: Chad Wilson <chadw@thoughtworks.com>

* Bump chai and transitive dependencies

Signed-off-by: Chad Wilson <chadw@thoughtworks.com>

* Bump version to 4.0.1

Signed-off-by: Chad Wilson <chadw@thoughtworks.com>

---------

Signed-off-by: Chad Wilson <chadw@thoughtworks.com>

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Nodejs
         uses: actions/setup-node@v4
         with:
-          node-version: 20.7.0
+          node-version: 20
 
       - name: Setup submodule
         run: |
@@ -51,7 +51,7 @@ jobs:
       - name: Set up Nodejs
         uses: actions/setup-node@v4
         with:
-          node-version: 20.7.0
+          node-version: 20
 
       - name: Setup java
         uses: actions/setup-java@v4
@@ -99,7 +99,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20.7.0
+          node-version: 20
 
       - name: Set up Go
         uses: actions/setup-go@v5

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up Nodejs
         uses: actions/setup-node@v4
         with:
-          node-version: 20.7.0
+          node-version: 20
 
       - name: Setup git
         run: |

js.json

@@ -51,7 +51,7 @@
             "--init"
         ]
     },
-    "version": "4.0.0",
+    "version": "4.0.1",
     "gaugeVersionSupport": {
         "minimum": "1.0.7",
         "maximum": ""