fix ci (pin libgpiod version)

pin libgpiod version since the version in our CI container changed.

Tested: Inspection only

Change-Id: I6e53159bd36eaebee9f8634cf5e7680b872bbf4f
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/meson.build b/meson.build
index eb9b96b..afde2e1 100644
--- a/meson.build
+++ b/meson.build
@@ -40,7 +40,11 @@
 phosphor_logging_dep = dependency('phosphor-logging')
 
 if get_option('gpio-presence') or get_option('tests').allowed()
-    libgpio_dep = dependency('libgpiodcxx', default_options: ['bindings=cxx'])
+    libgpio_dep = dependency(
+        'libgpiodcxx',
+        default_options: ['bindings=cxx'],
+        version: '<1.7.0',
+    )
 endif
 
 systemd = dependency('systemd')