chore(linux): Fix meson version

Due to a bug in reconf.sh we previously didn't configure
keyman-system-service when creating the source package. After
adding keyman-system-service as a dependency to ibus-keyman this
now gets configured, but on the stock Ubuntu 22.04 that we use for
the "Build source package" GHA job we only have the stock meson
version (0.61), so we use that as minimum version. We can use that
version even though we still support Ubuntu 20.04 Focal which comes
with 0.53, but that is build in a separate chroot that has access to
llso which has a 1.0 package.

linux/keyman-system-service/meson.build

@@ -1,7 +1,7 @@
 project('keyman-system-service', 'c', 'cpp',
         version: run_command('cat', '../../VERSION.md', check: true).stdout().strip(),
         license: 'GPL-2+',
-        meson_version: '>=1.0')
+        meson_version: '>=0.61')
 
 evdev    = dependency('libevdev', version: '>= 1.9')
 systemd  = dependency('libsystemd')

linux/scripts/reconf.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -e
+set -eu
 
 ## START STANDARD BUILD SCRIPT INCLUDE
 # adjust relative paths as necessary
@@ -17,13 +17,14 @@ echo "Found tier ${TIER}, version ${VERSION}"
 cd ../core
 ./build.sh --no-tests clean:arch configure:arch build:arch
 
+# Building ibus-keyman will also build dependency keyman-system-service
 cd "$BASEDIR/ibus-keyman"
 ./build.sh clean configure
 
 cd "$BASEDIR/keyman-config"
 ./build.sh clean
 
-cd keyman_config
+cd "$BASEDIR/keyman-config/keyman_config"
 sed \
     -e "s/_VERSION_/${VERSION}/g" \
     -e "s/_VERSIONWITHTAG_/${VERSION_WITH_TAG}/g" \