Update keyring path to new default recommendation (#552)

The new recommended path for keyrings is /etc/apt/keyrings.

See https://manpages.ubuntu.com/manpages/jammy/man8/apt-key.8.html (under Deprecation > Recommended)

Docker (for example) has also updated their recommended keyring location: https://docs.docker.com/engine/install/ubuntu/

runtimes/8.2/Dockerfile

@@ -15,8 +15,8 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 RUN apt-get update \
     && apt-get install -y gnupg gosu curl ca-certificates zip unzip git supervisor sqlite3 libcap2-bin libpng-dev python2 dnsutils \
-    && curl -sS 'https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x14aa40ec0831756756d7f66c4f4ea0aae5267a6c' | gpg --dearmor | tee /usr/share/keyrings/ppa_ondrej_php.gpg > /dev/null \
-    && echo "deb [signed-by=/usr/share/keyrings/ppa_ondrej_php.gpg] https://ppa.launchpadcontent.net/ondrej/php/ubuntu jammy main" > /etc/apt/sources.list.d/ppa_ondrej_php.list \
+    && curl -sS 'https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x14aa40ec0831756756d7f66c4f4ea0aae5267a6c' | gpg --dearmor | tee /etc/apt/keyrings/ppa_ondrej_php.gpg > /dev/null \
+    && echo "deb [signed-by=/etc/apt/keyrings/ppa_ondrej_php.gpg] https://ppa.launchpadcontent.net/ondrej/php/ubuntu jammy main" > /etc/apt/sources.list.d/ppa_ondrej_php.list \
     && apt-get update \
     && apt-get install -y php8.2-cli php8.2-dev \
        php8.2-pgsql php8.2-sqlite3 php8.2-gd \
@@ -31,10 +31,10 @@ RUN apt-get update \
     && curl -sLS https://deb.nodesource.com/setup_$NODE_VERSION.x | bash - \
     && apt-get install -y nodejs \
     && npm install -g npm \
-    && curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | tee /usr/share/keyrings/yarn.gpg >/dev/null \
-    && echo "deb [signed-by=/usr/share/keyrings/yarn.gpg] https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list \
-    && curl -sS https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor | tee /usr/share/keyrings/pgdg.gpg >/dev/null \
-    && echo "deb [signed-by=/usr/share/keyrings/pgdg.gpg] http://apt.postgresql.org/pub/repos/apt jammy-pgdg main" > /etc/apt/sources.list.d/pgdg.list \
+    && curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | tee /etc/apt/keyrings/yarn.gpg >/dev/null \
+    && echo "deb [signed-by=/etc/apt/keyrings/yarn.gpg] https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list \
+    && curl -sS https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor | tee /etc/apt/keyrings/pgdg.gpg >/dev/null \
+    && echo "deb [signed-by=/etc/apt/keyrings/pgdg.gpg] http://apt.postgresql.org/pub/repos/apt jammy-pgdg main" > /etc/apt/sources.list.d/pgdg.list \
     && apt-get update \
     && apt-get install -y yarn \
     && apt-get install -y mysql-client \