Bump dropseed/nextrelease from 1 to 2

Bumps [dropseed/nextrelease](https://github.com/dropseed/nextrelease) from 1 to 2.
- [Release notes](https://github.com/dropseed/nextrelease/releases)
- [Commits](dropseed/nextrelease@v1...v2)

---
updated-dependencies:
- dependency-name: dropseed/nextrelease
  dependency-version: '2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/nextrelease.yml

@@ -17,7 +17,7 @@ jobs:
     - uses: actions/setup-node@v2
       with:
         node-version: 'lts/*'
-    - uses: dropseed/nextrelease@v1
+    - uses: dropseed/nextrelease@v2
       with:
         prepare_cmd: |
           sed -i -e "s/v$LAST_VERSION/v$NEXT_VERSION/g" README.md