Auto merge of #23392 - Darkspirit:tc_openssl1.1, r=jdm

Build Linux Nightly with OpenSSL 1.1.0

Servo Nightly fails to run on Ubuntu 19.04 (disco) as it doesn't have a libssl1.0.0 package.
OpenSSL 1.1.x is supported since [Debian Stretch](https://packages.debian.org/en/stretch/libssl1.1) (currently Debian Stable) and [Ubuntu 18.04](https://packages.ubuntu.com/bionic/libssl1.1) (used by base.dockerfile).
Ancient Debian + Ubuntu releases are still able to compile Servo using their most recent OpenSSL (1.0.x).

---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #12015, fix #21778 and fix #22110

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etc/taskcluster/docker/build.dockerfile

@@ -24,7 +24,7 @@ RUN \
         libgstreamer-plugins-bad1.0-dev \
         #
         # OpenSSL
-        libssl1.0-dev \
+        libssl-dev \
         #
         # blurz
         libdbus-1-dev \

etc/taskcluster/docker/run.dockerfile

@@ -3,7 +3,7 @@
 # Servo’s runtime dependencies
 RUN apt-get install -qy --no-install-recommends \
     libgl1 \
-    libssl1.0.0 \
+    libssl1.1 \
     libdbus-1-3 \
     libgstreamer-plugins-bad1.0-0 \
     gstreamer1.0-plugins-good