refactor(journaldriver): Use anyhow instead of failure

Apparently failure is not hip anymore, and crate updates are forcing
the use of anyhow now. Whatever.

The functionality basically stays the same, maybe error messages will
look a little bit different now.

Change-Id: I173d644688785339c16161ddeec47a534123710f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5307
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: tazjin <tazjin@tvl.su>

ops/journaldriver/Cargo.toml

@@ -5,9 +5,9 @@ authors = ["Vincent Ambo <mail@tazj.in>"]
 license = "GPL-3.0-or-later"
 
 [dependencies]
+anyhow = "1.0"
 chrono = { version = "0.4", features = [ "serde" ]}
 env_logger = "0.5"
-failure = "0.1"
 lazy_static = "1.0"
 log = "0.4"
 medallion = "2.2"