v1.0.2: Prepare a Wasmtime 1.0.2 release (#5246)

* Merge pull request from GHSA-wh6w-3828-g9qf

This is a minimal fix for the release branch to fix the issue of having
a memory slot get reused between a module with an image and one without.

* Merge pull request from GHSA-44mr-8vmm-wjhg

This ensures that memories, even with zero contents, still have the
necessary virtual mappings as required by the code generator to report
out-of-bounds reads/writes.

* Merge pull request from GHSA-h84q-m8rr-3v9q

The Rust definition was previously performing a 4-byte write when the C
API was declared as taking an 1-byte buffer.

* CI fixes from CVE patches

* Bump to 1.0.2

* Cherry-pick github actions fixes for 1.0.2 release

Culmination of patches already landed in `main` and `release-2.0.0`

* Release Wasmtime 1.0.2

[automatically-tag-and-release-this-commit]

* Fix inst size test for Rust 1.65.0

* Use an alternate doxygen download link (#5150)

* Use an alternate doxygen download link

Looks like doxygen.nl is down otherwise.

* Update link