[master] Update vulnerable regex package (Azure#6070)

Component governance identified a vulnerability in thread_local, which was a transitive dependency brought in by older regex versions. This has the additional benefit of unifying our regex dependency versions. RUSTSEC advisory: https://rustsec.org/advisories/RUSTSEC-2022-0006.html ## Azure IoT Edge PR checklist:
vipeller · Feb 4, 2022 · cfeea7d · cfeea7d
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commit cfeea7d
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diff --git a/edgelet/Cargo.lock b/edgelet/Cargo.lock
diff --git a/edgelet/iotedge/Cargo.toml b/edgelet/iotedge/Cargo.toml
@@ -26,7 +26,7 @@ libc = "0.2"
 log = "0.4"
 nix = "0.23"
 openssl = "0.10"
-regex = "0.2"
+regex = "1"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"