Bump EAPI 7 -> 8 as required by eclass. ;)

This is a nice demonstration of using the eclass. It showcases some
advanced usage, in particular, how to augment a single key within a
keyring published on upstream's website with an extended expiration date
from the openpgp.org keyserver.

The ebuild was previously updated in commit 1061fd37f9491f2601a8b5b6c92ffc3a2f42d7c9 with some explanatory text
about why we needed to do that. It wasn't a very good commit (sorry,
past self!) because it was kind of inscrutable whether the key "should"
have been included. That commit would have instead modified "none" to
"openpgp" for daiki, had the eclass existed exactly a year ago.

Bug: https://gitlab.com/gnutls/web-pages/-/issues/6
Fixes: 1061fd37f9491f2601a8b5b6c92ffc3a2f42d7c9
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
---
sec-keys/openpgp-keys-gnutls/Manifest | 1 +
.../openpgp-keys-gnutls-20240415-r1.ebuild | 22 +++++++++++++++++++
2 files changed, 23 insertions(+)
create mode 100644 sec-keys/openpgp-keys-gnutls/openpgp-keys-gnutls-20240415-r1.ebuild

diff --git a/sec-keys/openpgp-keys-gnutls/Manifest b/sec-keys/openpgp-keys-gnutls/Manifest
index eb2132f1bf3e..a2a4a26cbb10 100644
--- a/sec-keys/openpgp-keys-gnutls/Manifest
+++ b/sec-keys/openpgp-keys-gnutls/Manifest
@@ -1,3 +1,4 @@
+DIST openpgp-keys-daiki-openpgp-20240415.asc 7345 BLAKE2B 0a6a0079483320bbd191f3c04a21ac52b159f755518ae7d6e27869b7cda06548bd7772ce5b9def07dece791537cbfb750bd227023f7665cbd860b5ce200fc4d0 SHA512
55af264087eceb244c59bec2aa4c62df3fc0b25ceb13728e7c3fc9042ae2fb990282367e6b46eda7ceb7f267add6dcd8948a887d825c7759cc61c642d6e0a3a7
DIST openpgp-keys-gnutls-20220320-release-keyring.gpg 20850 BLAKE2B 06865e4ac4e69237f7c52f551ce902281f6699bd144cb16c97e81aa1323c99187637c3b62730e700bc1c7f9de4608da55d3a80c8ffc240ee533e42b4707e4fbe