Bug#1068681: kquickcharts: Make the tests non-fatal on loong64

[zhangdandan <zhangdandan@loongson.cn>]

Source: kquickcharts
Version: 5.107.0-1
Severity: wishlist
Tags: ftbfs patch
User: debian-loongarch@lists.debian.org
Usertags: loong64

Dear maintainers,

Compiling the kquickcharts package failed for loong64 in the Debian 
Package Auto-Building environment, the error log is as follows:
```
......
The following tests FAILED:
      5 - tst_BarChart.qml (Subprocess aborted)
      6 - tst_LineChart.qml (Subprocess aborted)
      7 - tst_PieChart.qml (Subprocess aborted)
Errors while running CTest
```

The full build log can be found at 
https://buildd.debian.org/status/logs.php?pkg=kquickcharts&ver=5.107.0-1%2Bb1&arch=loong64.

There is no architecture-related code in the kquickcharts source code.
Refer to the processing methods of other architectures, could you set 
the tests non-fatal on loong64?
Please consider the patch I have attached.
Your opinions are welcome.

Thanks,
Dandan Zhang

diff -Nru kquickcharts-5.107.0/debian/rules kquickcharts-5.107.0/debian/rules
--- kquickcharts-5.107.0/debian/rules	2023-03-16 21:42:02.000000000 +0000
+++ kquickcharts-5.107.0/debian/rules	2023-06-18 14:08:49.000000000 +0000
@@ -5,7 +5,7 @@
 
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
-testsuite_failing_archs := alpha hppa hurd-i386 mips64el powerpc riscv64 x32
+testsuite_failing_archs := alpha hppa hurd-i386 loong64 mips64el powerpc riscv64 x32
 ifneq (,$(filter $(DEB_HOST_ARCH),$(testsuite_failing_archs)))
   fail_param := || true
 endif