gcc-6 will fail pkgconf test pipeline

[murraybd]

If the pkgconf test pipeline is added to gcc-6 it will fail in the following way:

2024/11/12 23:10:52 INFO running step "test/pkgconf"
2024/11/12 23:10:52 WARN + '[' -d /home/build ] uses=test/pkgconf
2024/11/12 23:10:52 WARN + cd /home/build uses=test/pkgconf
2024/11/12 23:10:52 WARN + exit 0 uses=test/pkgconf
2024/11/12 23:10:52 INFO running step "pkgconf build dependency check" uses=test/pkgconf
2024/11/12 23:10:52 WARN + '[' -d /home/build ] uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + cd /home/build uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + basename /home/build/melange-out/gcc-6 uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + dev_pkg=gcc-6 uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + cd / uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + apk info -L gcc-6 uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + grep '\.pc$' uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN WARNING: opening /home/user/src/wolfi-os/packages: No such file or directory uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN WARNING: opening from cache https://packages.wolfi.dev/os: No such file or directory uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + grep -q ^Name: usr/lib/gcc/x86_64-pc-linux-gnu/6.5.0/pkgconfig/libgcj-6.pc uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + basename usr/lib/gcc/x86_64-pc-linux-gnu/6.5.0/pkgconfig/libgcj-6.pc .pc uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + lib_name=libgcj-6 uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + echo usr/lib/gcc/x86_64-pc-linux-gnu/6.5.0/pkgconfig/libgcj-6.pc uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 WARN + grep -q '^usr/lib/pkgconfig/libgcj-6.pc$\|^usr/share/pkgconfig/libgcj-6.pc$' uses=test/pkgconf name="pkgconf build dependency check"
2024/11/12 23:10:52 INFO pod bc7253ccb16ef5c0e3352fba135ed385f5c09a01de7b6ccd2eb3af93e95de065 terminated
2024/11/12 23:10:52 INFO ERROR: failed to test package. the test environment has been preserved:
2024/11/12 23:10:52 INFO   workspace dir: /home/user/tmp/melange-workspace-3577936433
2024/11/12 23:10:52 INFO   guest dir: /home/user/tmp/melange-guest-1095287712
2024/11/12 23:10:52 ERRO failed to test package: unable to run pipeline: unable to run pipeline: unable to run pipeline: task exited with code 1
make: *** [Makefile:147: test/gcc-6] Error 1```