meson: update to 0.54.3

Meson 0.54.2 had a bug with boost that affects us and was fixed
in 0.54.3 via 15b738841.  Update to that release.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ief6a7b05dc1221f6b6e4dae87aac571c6aa3a8f4
diff --git a/build-unit-test-docker.sh b/build-unit-test-docker.sh
index b786d27..143b8b0 100755
--- a/build-unit-test-docker.sh
+++ b/build-unit-test-docker.sh
@@ -271,7 +271,7 @@
 RUN pip3 install inflection
 RUN pip3 install pycodestyle
 RUN pip3 install jsonschema
-RUN pip3 install meson==0.54.2
+RUN pip3 install meson==0.54.3
 
 FROM openbmc-base as openbmc-lcov
 RUN curl -L https://github.com/linux-test-project/lcov/archive/${PKG_REV['lcov']}.tar.gz | tar -xz && \