change latest to humble-ex1.15.7-otp26.2.2, add elixir v1.16, and sort out older tags

[takasehideki]

This PR changes the latest tag that contains the recommended tool versions for Rclex to humble-ex1.15.7-otp26.2.2.
Also, humble-ex1.16.2-otp26.2.2 is added, and some older tags are sorted out.

• Humble Hawksbill (LTS rosdistro until May 2027)
  • humble-ex1.16.2-otp26.2.2
  • humble-ex1.15.7-otp26.2.2 [latest]
  • humble-ex1.14.5-otp25.3.2.5
• Foxy Fitzroy (EOL!)
  • foxy-ex1.15.5-otp26.0.2
• [experimental] Iron Irwini (STS until Nov 2024)
  • iron-ex1.15.5-otp26.0.2

I will merge this PR after pushing these new tags, and confirming these operations with the Rclex CI test.

---

Note that the initial of this PR used OTP 26.2.3, but I found the issue on arm64, so I decided to downgrade to 26.2.2 for now (see detail)

[takasehideki]

Umm,,, so strange segmentation fault occurred in mix rclex_docker.build --multi ;;(

 => ERROR [linux/arm64 13/15] RUN . /opt/ros/humble/setup.sh && env |   0.4s
------
 > [linux/arm64 13/15] RUN . /opt/ros/humble/setup.sh && env | grep ROS &&   mix hex.info:
0.074 ROS_PYTHON_VERSION=3
0.074 ROS_DISTRO=humble
0.074 ROS_VERSION=2
0.074 ROS_LOCALHOST_ONLY=0
0.422 Segmentation fault
------
WARNING: No output specified with docker-container driver. Build result will only remain in the build cache. To push result image into registry use --push or to load image into docker use --load
Dockerfile:81
--------------------
  80 |     # Check version
  81 | >>> RUN . /opt/ros/${ROS_DISTRO}/setup.sh && env | grep ROS && \
  82 | >>>   mix hex.info
  83 |     
--------------------
ERROR: failed to solve: process "/bin/sh -c . /opt/ros/${ROS_DISTRO}/setup.sh && env | grep ROS &&   mix hex.info" did not complete successfully: exit code: 139

12:09:28.127 [error] docker build failed, exit_status: 1

[takasehideki]

Almost the same issue happened when we operated BASE_IMAGE directly on my M1Mac.

% docker run -it hexpm/elixir:1.15.7-erlang-26.2.3-ubuntu-jammy-20240125
root@9c9831b4db0e:/# mix local.hex
Are you sure you want to install "https://builds.hex.pm/installs/1.15.0/hex-2.0.6.ez"? [Yn] y
* creating root/.mix/archives/hex-2.0.6
root@9c9831b4db0e:/# mix hex.info
Segmentation fault

[takasehideki]

I found a tentative cause at erlang/otp#8238
Roughly speaking, the combination of Hex 2.0.6 and OTP 26.2.3 on arm64 could not work fine for now. The solution is to downgrade the OTP to 26.2.2 or do run mix archive.install github hexpm/hex branch latest as indicated in the thread. Since we don't necessarily need Erlang to be up-to-date, we'll take the former approach.

[takasehideki]

CI for rclex works fine!!
rclex/rclex#308