Bump telegraf from 2.1.1 to 3.0.0

Bumps [telegraf](https://github.com/jgraichen/telegraf-ruby) from 2.1.1 to 3.0.0.
- [Release notes](https://github.com/jgraichen/telegraf-ruby/releases)
- [Changelog](https://github.com/jgraichen/telegraf-ruby/blob/main/CHANGELOG.md)
- [Commits](https://github.com/jgraichen/telegraf-ruby/compare/v2.1.1...v3.0.0)

---
updated-dependencies:
- dependency-name: telegraf
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Gemfile.lock

@@ -190,7 +190,6 @@ GEM
       builder (>= 1.0, < 4.0)
       oauth (>= 0.4.5)
       rexml
-    influxdb (0.8.1)
     io-console (0.7.2)
     irb (1.12.0)
       rdoc
@@ -515,8 +514,7 @@ GEM
     ssrf_filter (1.1.2)
     stackprof (0.2.26)
     stringio (3.1.0)
-    telegraf (2.1.1)
-      influxdb
+    telegraf (3.0.0)
     temple (0.10.3)
     terser (1.2.0)
       execjs (>= 0.3.0, < 3)