Dependency & Maintenance update (#85)

* Bump the development-dependencies group across 1 directory with 6 updates (#83)

Bumps the development-dependencies group with 6 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [@babel/cli](https://github.com/babel/babel/tree/HEAD/packages/babel-cli) | `7.24.7` | `7.24.8` |
| [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) | `7.24.7` | `7.25.2` |
| [@babel/node](https://github.com/babel/babel/tree/HEAD/packages/babel-node) | `7.24.7` | `7.25.0` |
| [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) | `7.24.7` | `7.25.3` |
| [chai](https://github.com/chaijs/chai) | `4.4.1` | `4.5.0` |
| [mocha](https://github.com/mochajs/mocha) | `10.6.0` | `10.7.3` |


* Bump @natlibfi/fixura in the production-dependencies group (#84)

* Update deps

* Node-tests: remove v19, v21

* Update nyc & istanbul

* 1.1.13-alpha.1

.github/workflows/melinda-node-tests.yml

@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 19.x, 20.x, 21.x, 22.x]
+        node-version: [18.x, 20.x, 22.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps: