Bump openssl from 0.10.48 to 0.10.55

Bumps [openssl](https://github.com/sfackler/rust-openssl) from 0.10.48 to 0.10.55.
- [Release notes](https://github.com/sfackler/rust-openssl/releases)
- [Commits](https://github.com/sfackler/rust-openssl/compare/openssl-v0.10.48...openssl-v0.10.55)

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

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

Cargo.lock

@@ -568,9 +568,9 @@ checksum = "2f7254b99e31cad77da24b08ebf628882739a608578bb1bcdfc1f9c21260d7c0"
 
 [[package]]
 name = "openssl"
-version = "0.10.48"
+version = "0.10.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "518915b97df115dd36109bfa429a48b8f737bd05508cf9588977b599648926d2"
+checksum = "345df152bc43501c5eb9e4654ff05f794effb78d4efe3d53abc158baddc0703d"
 dependencies = [
  "bitflags",
  "cfg-if",
@@ -600,11 +600,10 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.83"
+version = "0.9.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "666416d899cf077260dac8698d60a60b435a46d57e82acb1be3d0dad87284e5b"
+checksum = "374533b0e45f3a7ced10fcaeccca020e66656bc03dac384f852e4e5a7a8104a6"
 dependencies = [
- "autocfg",
  "cc",
  "libc",
  "pkg-config",

Cargo.toml

@@ -40,7 +40,7 @@ structopt = "0.3"
 encoding = "0.2.32"
 failure = "0.1.8"
 mime = "0.3.4"
-openssl = "0.10.48"
+openssl = "0.10.55"
 
 [[example]]
 name = "basic"