chore(deps): update rustls-pemfile requirement from 1.0 to 2.0

Updates the requirements on [rustls-pemfile](https://github.com/rustls/pemfile) to permit the latest version.
- [Release notes](https://github.com/rustls/pemfile/releases)
- [Commits](rustls/pemfile@v/1.0.0...v/2.0.0)

---
updated-dependencies:
- dependency-name: rustls-pemfile
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -49,7 +49,7 @@ once_cell = "1.9"
 procspawn = "1.0"
 proptest = "1"
 proptest-derive = "0.4"
-rustls-pemfile = "1.0"
+rustls-pemfile = "2.0"
 rdkafka = { version = "0.34", default-features = false, features = ["libz", "tokio", "zstd"] }
 tokio = { version = "1.14", features = ["macros", "rt-multi-thread"] }
 tracing-log = "0.2"