repo-install-test: print osmocom_packages_all.txt

While I'm developing this, Jenkins is currently failing here. Make it
easier to debug this by printing the file contents.

Related: OS#5365
Change-Id: Ifbf4ca7f49c1f4441f84695aea0936515e01ffd4

scripts/repo-install-test/run-inside.sh

@@ -321,6 +321,8 @@ install_repo_packages_debian() {
 		"?origin(.*$PROJ.*) ?architecture(native)" | sort \
 		> osmocom_packages_all.txt
 
+	cat osmocom_packages_all.txt
+
 	filter_packages_txt
 	apt install -y $(cat osmocom_packages.txt)
 }
@@ -336,6 +338,8 @@ install_repo_packages_centos() {
 		--qf="%{name}" \
 		> osmocom_packages_all.txt
 
+	cat osmocom_packages_all.txt
+
 	filter_packages_txt
 	dnf install -y $(cat osmocom_packages.txt)
 }