Change value of the package name's suffix

Previously `-` was not supported as a value of `environment` property in
the `npm-version-bump` action. Now action supports hyphens and we can
change the suffix to more readible format.

Author: michalinacienciala

.github/workflows/contracts.yaml

@@ -10,7 +10,7 @@ on:
   # We intend to use `workflow dispatch` in two different situations/paths:
   # 1. If a workflow will be manually dspatched from branch named
   #    `dapp-development`, workflow will deploy the contracts on the selected
-  #    testnet and publish them to NPM registry with `dappdev<environment>`
+  #    testnet and publish them to NPM registry with `dapp-dev-<environment>`
   #    suffix and `dapp-development-<environment>` tag. Such packages are meant
   #    to be used locally by the team developing Threshold Token dApp and may
   #    contain contracts that have different values from the ones used on
@@ -250,7 +250,7 @@ jobs:
         id: npm-version-bump
         uses: keep-network/npm-version-bump@v2
         with:
-          environment: dappdev${{ github.event.inputs.environment }}
+          environment: dapp-dev-${{ github.event.inputs.environment }}
           branch: ${{ github.ref }}
           commit: ${{ github.sha }}