ci: Replace scanbuild and coverage jobs with the template

Part-of: <https://gitlab.gnome.org/GNOME/gnome-calendar/-/merge_requests/584>

.gitlab-ci/build-static-scan.sh

@@ -1,11 +0,0 @@
-#!/bin/sh
-
-set -eux -o pipefail
-
-meson setup --buildtype=debug  --prefix /usr _scan_build .
-ninja -C _scan_build scan-build
-mkdir -p public/
-
-# The scan-build command creates _scan_build/meson-logs/scanbuild/UUID which is ugly,
-# so we copy it to a friendly name instead.
-cp -r _scan_build/meson-logs/scanbuild/* public/scanbuild

.gitlab-ci/build-with-coverage.sh

@@ -1,9 +0,0 @@
-#!/bin/sh
-
-set -eux -o pipefail
-
-export CFLAGS="-coverage -ftest-coverage -fprofile-arcs"
-
-meson setup --buildtype=debug --prefix /usr _build .
-meson compile -C _build
-meson test -C _build

.gitlab-ci/gen-coverage.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-set -eux -o pipefail
-
-mkdir -p public
-grcov _build --source-dir ./ --prefix-dir ../ --output-type cobertura --branch --ignore-not-existing -o public/coverage.xml
-grcov _build --source-dir ./ --prefix-dir ../ --output-type html --branch --ignore-not-existing -o public/coverage
-
-# Print "Coverage: 42.42" so .gitlab-ci.yml will pick it up with a regex
-#
-# We scrape this from the HTML report, not the JSON summary, because coverage.json
-# uses no decimal places, just something like "42%".
-
-grep -Eo 'abbr title.* %' public/coverage/index.html | head -n 1 | grep -Eo '[0-9.]+ %' | grep -Eo '[0-9.]+' | awk '{ print "Coverage:", $1 }'

.gitlab-ci/install-grcov.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-set -eux -o pipefail
-
-wget https://github.com/mozilla/grcov/releases/download/v0.10.0/grcov-x86_64-unknown-linux-gnu.tar.bz2
-tar xvf grcov-x86_64-unknown-linux-gnu.tar.bz2
-mkdir -p /usr/local/bin
-mv grcov /usr/local/bin/grcov
-