tests: reenable network-listening tests under GitHub Actions

These tests can sit listening forever unless terminated.  The problem (I
believe) is that yath was meant to catch a term signal, but it's running
as pid 1, which has special rules.  We need to put an init in the way,
to we have added "--init" to the container options in the underlying
dzil-action action.

t/dates.t

@@ -6,10 +6,6 @@ use lib 'lib', 't/lib';
 
 use Test::More;
 
-if ($ENV{GITHUB_ACTION}) {
-  plan skip_all => "test fails under GitHub Actions at present";
-}
-
 use Synergy::Logger::Test '$Logger';
 
 use IO::Async::Loop;

t/httpendpoint.t

@@ -5,10 +5,6 @@ use lib 't/lib';
 
 use Test::More;
 
-if ($ENV{GITHUB_ACTION}) {
-  plan skip_all => "test fails under GitHub Actions at present";
-}
-
 use Synergy::Logger::Test '$Logger';
 
 use Net::Async::HTTP;

t/https.t

@@ -5,10 +5,6 @@ use lib 't/lib';
 
 use Test::More;
 
-if ($ENV{GITHUB_ACTION}) {
-  plan skip_all => "test fails under GitHub Actions at present";
-}
-
 use Synergy::Logger::Test '$Logger';
 
 use IO::Async::Loop;

t/httpserver.t

@@ -5,10 +5,6 @@ use lib 't/lib';
 
 use Test::More;
 
-if ($ENV{GITHUB_ACTION}) {
-  plan skip_all => "test fails under GitHub Actions at present";
-}
-
 use Synergy::Logger::Test '$Logger';
 
 use IO::Async::Loop;

t/page.t

@@ -5,10 +5,6 @@ use lib 't/lib';
 
 use Test::More;
 
-if ($ENV{GITHUB_ACTION}) {
-  plan skip_all => "test fails under GitHub Actions at present";
-}
-
 use Synergy::Logger::Test '$Logger';
 
 use IO::Async::Loop;

t/prometheus.t

@@ -5,10 +5,6 @@ use lib 't/lib';
 
 use Test::More;
 
-if ($ENV{GITHUB_ACTION}) {
-  plan skip_all => "test fails under GitHub Actions at present";
-}
-
 use Synergy::Logger::Test '$Logger';
 
 use IO::Async::Loop;