Fix the -dirty flag on the reported version when building with Docker

Update .gitignore and .dockerignore to avoid the build being reported
as dirty.

Remove the redundant git PPA apt repository from the list.

.dockerignore

@@ -1,12 +1 @@
-.dockerignore
-.DS_Store
 .env
-.github
-.gitignore
-.vscode
-ChangeLog
-COPYING
-docker-compose.yml
-Dockerfile
-INSTALL
-README.md

.gitignore

@@ -2,12 +2,15 @@
 *.l[oa]
 *.log
 *~
+.DS_Store
+.devcontainer
+.env
+.idea
+.vscode
 *.cache
 *.dSYM
 .deps
 .libs
-doc/_build
-tests/*.trs
 ar-lib
 compile
 config.*
@@ -25,6 +28,11 @@ GRTAGS
 GTAGS
 aclocal.m4
 configure
+ub-*-baton-irods-*
+Makefile
+doc/Makefile
+doc/_build
+doc/baton.1
 m4/libtool.m4
 m4/ltoptions.m4
 m4/ltsugar.m4
@@ -37,3 +45,5 @@ src/baton-metamod
 src/baton-metaquery
 src/baton-metasuper
 src/baton-specificquery
+tests/*.trs
+tests/Makefile

release/ubuntu/22.04/Dockerfile

@@ -32,10 +32,6 @@ RUN apt-get update && \
     irods-dev="${IRODS_VERSION}-0~$(lsb_release -sc)" \
     irods-runtime="${IRODS_VERSION}-0~$(lsb_release -sc)"
 
-RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys "E1DD270288B4E6030699E45FA1715D88E1DF1F24" && \
-    echo "deb https://ppa.launchpadcontent.net/git-core/ppa/ubuntu $(lsb_release -sc) main" |\
-    tee /etc/apt/sources.list.d/git-core.list
-
 RUN apt-get update && \
     apt-get install -q -y --no-install-recommends \
     autoconf \