Update URL of tap-plugins submodule (#7087)

.github/workflows/build.yml

@@ -171,7 +171,8 @@ jobs:
         run: |
           add-apt-repository ppa:git-core/ppa
           apt-get update
-          apt-get --yes install git
+          apt-get --yes install apt-transport-https ca-certificates git
+          update-ca-certificates
           git config --global --add safe.directory "$GITHUB_WORKSPACE"
       - name: Check out
         uses: actions/checkout@v3

.gitmodules

@@ -24,7 +24,7 @@
 	url = https://github.com/swh/ladspa
 [submodule "plugins/LadspaEffect/tap/tap-plugins"]
 	path = plugins/LadspaEffect/tap/tap-plugins
-	url = https://github.com/tomszilagyi/tap-plugins
+	url = https://git.hq.sig7.se/tap-plugins.git
 [submodule "src/3rdparty/weakjack/weakjack"]
 	path = src/3rdparty/weakjack/weakjack
 	url = https://github.com/x42/weakjack.git