Ionic: add missing indirect abseil dependencies

Signed-off-by: Steve Peters <scpeters@openrobotics.org>

Author: scpeters

Formula/gz-fuel-tools10.rb

@@ -7,6 +7,7 @@ class GzFuelTools10 < Formula
 
   head "https://github.com/gazebosim/gz-fuel-tools.git", branch: "gz-fuel-tools10"
 
+  depends_on "abseil"
   depends_on "cmake"
   depends_on "gz-cmake4"
   depends_on "gz-common6"

Formula/gz-gui9.rb

@@ -9,6 +9,7 @@ class GzGui9 < Formula
 
   depends_on "cmake" => [:build, :test]
   depends_on "pkg-config" => [:build, :test]
+  depends_on "abseil"
   depends_on "gz-cmake4"
   depends_on "gz-common6"
   depends_on "gz-math8"

Formula/gz-launch8.rb

@@ -10,6 +10,7 @@ class GzLaunch8 < Formula
   depends_on "cmake" => :build
   depends_on "pkg-config" => :build
 
+  depends_on "abseil"
   depends_on "ffmpeg"
   depends_on "gz-cmake4"
   depends_on "gz-common6"

Formula/gz-msgs11.rb

@@ -7,6 +7,7 @@ class GzMsgs11 < Formula
 
   head "https://github.com/gazebosim/gz-msgs.git", branch: "main"
 
+  depends_on "abseil"
   depends_on "cmake"
   depends_on "gz-cmake4"
   depends_on "gz-math8"

Formula/gz-sensors9.rb

@@ -10,6 +10,7 @@ class GzSensors9 < Formula
   depends_on "cmake" => [:build, :test]
   depends_on "pkg-config" => [:build, :test]
 
+  depends_on "abseil"
   depends_on "gz-cmake4"
   depends_on "gz-common6"
   depends_on "gz-math8"

Formula/gz-sim9.rb

@@ -9,6 +9,7 @@ class GzSim9 < Formula
 
   depends_on "cmake" => :build
   depends_on "pybind11" => :build
+  depends_on "abseil"
   depends_on "ffmpeg"
   depends_on "gflags"
   depends_on "google-benchmark"

Formula/gz-transport14.rb

@@ -10,6 +10,7 @@ class GzTransport14 < Formula
   depends_on "doxygen" => [:build, :optional]
   depends_on "pybind11" => :build
 
+  depends_on "abseil"
   depends_on "cmake"
   depends_on "cppzmq"
   depends_on "gz-cmake4"