Update googletest to 1.18.0 and SIMDe to 0.8.2.

Googletest 1.18 asks for CMake 3.13 or newer, so configuring the tests no longer warns that CMake compatibility below 3.10 is deprecated.

Co-authored-by: Cursor <cursoragent@cursor.com>

thirdparty/simde/.packit.yml

@@ -0,0 +1,30 @@
+# See the `.packit/README.md` for details.
+
+# The used RPM spec file path.
+# A minimal RPM spec file to run the tests.
+specfile_path: .packit/simde.spec
+
+jobs:
+  - &copr
+    # Use Fedora COPR in the CI.
+    # https://packit.dev/docs/configuration/#copr_build
+    job: copr_build
+    trigger: pull_request
+    # Enable internet access in the COPR.
+    enable_net: true
+    # Executed targets in the CI. Available targets are below.
+    # https://packit.dev/docs/configuration/#available-copr-build-targets
+    #
+    # Note that we keep the Fedora rawhide. See the `.packit/README.md` -
+    # "Motivation and context" for details.
+    targets:
+      - fedora-rawhide-x86_64
+      - fedora-rawhide-aarch64
+      - fedora-rawhide-ppc64le
+      - fedora-rawhide-s390x
+  - <<: *copr
+    # Run on push to any branch.
+    trigger: commit
+    # Run except the "master*" and "dependabot*" branches.
+    # https://github.com/packit/packit/issues/1986
+    branch: '(?!master)(?!dependabot)'