Bump git2 from 0.8.0 to 0.16.1 in /.maintain/node-template-release (p…

…aritytech#978)

Bumps [git2](https://github.com/rust-lang/git2-rs) from 0.8.0 to 0.16.1.
- [Release notes](https://github.com/rust-lang/git2-rs/releases)
- [Commits](rust-lang/git2-rs@git2-curl-0.8.0...0.16.1)

---
updated-dependencies:
- dependency-name: git2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.maintain/node-template-release/Cargo.toml

@@ -12,7 +12,7 @@ glob = "0.2"
 structopt = "0.3"
 tempfile = "3"
 fs_extra = "1"
-git2 = "0.8"
+git2 = "0.16"
 flate2 = "1.0"
 
 [workspace]