build-unit-test-docker: Add libmpfr-dev
After meson bump, clang-tidy reports an error when using
boost::multiprecision based on the MPFR library
```
/usr/local/include/boost/multiprecision/mpfr.hpp:22:10: error: 'mpfr.h' file not found [clang-diagnostic-error]
```
Change-Id: I76db10af842926f5767c897b92f1ccc0f63ffdbe
Signed-off-by: Ewelina Walkusz <ewelinax.walkusz@intel.com>
diff --git a/scripts/build-unit-test-docker b/scripts/build-unit-test-docker
index a7237b6..7953255 100755
--- a/scripts/build-unit-test-docker
+++ b/scripts/build-unit-test-docker
@@ -859,6 +859,7 @@
libjson-perl \
libldap2-dev \
libmimetic-dev \
+ libmpfr-dev \
libnl-3-dev \
libnl-genl-3-dev \
libpam0g-dev \