build-unit-test-docker: catch2 2.10.0 -> 2.11.1

Change-Id: I51db2117c4dc7922f9e79ef09daad15f6d08f4d7
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/build-unit-test-docker.sh b/build-unit-test-docker.sh
index 71aa626..9a36169 100755
--- a/build-unit-test-docker.sh
+++ b/build-unit-test-docker.sh
@@ -93,7 +93,7 @@
 declare -A PKG_REV=(
   [boost]=1.71.0
   [cereal]=v1.2.2
-  [catch2]=v2.10.0
+  [catch2]=v2.11.1
   [CLI11]=v1.8.0
   [fmt]=5.3.0
   # Snapshot from 2019-03-10
@@ -279,7 +279,7 @@
 cd Catch2-* && \
 mkdir build && \
 cd build && \
-cmake ${CMAKE_FLAGS[@]} -DCATCH_BUILD_TESTING=OFF -DCATCH_INSTALL_DOCS=OFF .. && \
+cmake ${CMAKE_FLAGS[@]} -DBUILD_TESTING=OFF -DCATCH_INSTALL_DOCS=OFF .. && \
 make -j$(nproc) && \
 make install