[install] in archiver.yml, remove tag date and tag author to the rele…

…ase notes (it does not work if it is not an annotated tag)

.github/workflows/archiver.yml

@@ -121,9 +121,6 @@ jobs:
           echo "INFO: tagname ${tagname} is a pre-release tag: will NOT update running tag ${tagname_latest}"
         fi
         echo "TAGNAME_MAKELATEST=${tagname_makelatest}" >> $GITHUB_ENV
-        dateformat='%Y-%m-%d_%H:%M:%S UTC'
-        tagdate=$(TZ=UTC git for-each-ref --format "Tag '${tagname}' created on %(taggerdate:format-local:${dateformat}) by %(taggername)" refs/tags/${tagname})
-        echo "TAGDATE=${tagdate}" >> $GITHUB_ENV
         # Update VERSION.txt
         echo "" >> ${WORKDIR}/VERSION.txt
         echo "VERSION TAG:   ${tagname}" >> ${WORKDIR}/VERSION.txt
@@ -133,8 +130,6 @@ jobs:
         echo "" >> ${WORKDIR}/versiontag.txt
         echo "Validated for mg5amcnlo version ${mg5_version} (commit [${mg5_commit}](https://github.com/mg5amcnlo/mg5amcnlo/commit/${mg5_commit}))" >> ${WORKDIR}/versiontag.txt
         echo "" >> ${WORKDIR}/versiontag.txt
-        echo "${tagdate}" >> ${WORKDIR}/versiontag.txt
-        echo "" >> ${WORKDIR}/versiontag.txt
         echo "---" >> ${WORKDIR}/versiontag.txt
         echo "" >> ${WORKDIR}/versiontag.txt
         if [ "${tagname_makelatest}" != "true" ]; then
@@ -215,7 +210,6 @@ jobs:
         mg5_commit=$(cat ${WORKDIR}/VERSION.txt | awk '/^mg5_commit_current/{print $3}')
         echo "(From VERSION.txt)       mg5_version_current = ${mg5_version}"
         echo "(From VERSION.txt)       mg5_commit_current  = ${mg5_commit}"
-        tagdate=${TAGDATE}
         # Create running tag
         git config user.name github-actions
         git config user.email [email protected]
@@ -228,8 +222,6 @@ jobs:
         echo "" >> ${WORKDIR}/runningtag.txt
         echo "Validated for mg5amcnlo version ${mg5_version} (commit [${mg5_commit}](https://github.com/mg5amcnlo/mg5amcnlo/commit/${mg5_commit}))" >> ${WORKDIR}/runningtag.txt
         echo "" >> ${WORKDIR}/runningtag.txt
-        echo "${tagdate}" >> ${WORKDIR}/runningtag.txt
-        echo "" >> ${WORKDIR}/runningtag.txt
         echo "---" >> ${WORKDIR}/runningtag.txt
         echo "" >> ${WORKDIR}/runningtag.txt
         cat ${WORKDIR}/VERSION.txt | egrep '^(commit|TARBALL) ' >> ${WORKDIR}/runningtag.txt