Update some package homepage URLS (#46683)

Co-authored-by: Rocco Meli <r.meli@bluemail.ch>
Co-authored-by: Tamara Dahlgren <35777542+tldahlgren@users.noreply.github.com>

var/spack/repos/builtin/packages/libxml2/package.py

@@ -16,7 +16,7 @@ class Libxml2(AutotoolsPackage, NMakePackage):
     project (but usable outside of the Gnome platform), it is free
     software available under the MIT License."""
 
-    homepage = "http://xmlsoft.org"
+    homepage = "https://gitlab.gnome.org/GNOME/libxml2/-/wikis"
     url = "https://download.gnome.org/sources/libxml2/2.9/libxml2-2.9.13.tar.xz"
     list_url = "https://gitlab.gnome.org/GNOME/libxml2/-/releases"
 

var/spack/repos/builtin/packages/masurca/package.py

@@ -12,7 +12,7 @@ class Masurca(Package):
     of the de Bruijn graph and Overlap-Layout-Consensus (OLC)
     approaches."""
 
-    homepage = "http://www.genome.umd.edu/masurca.html"
+    homepage = "https://www.genome.umd.edu/masurca.html"
     url = "https://github.com/alekseyzimin/masurca/releases/download/v3.3.1/MaSuRCA-3.3.1.tar.gz"
 
     license("GPL-3.0-only")

var/spack/repos/builtin/packages/miniconda3/package.py

@@ -140,7 +140,7 @@
 class Miniconda3(Package):
     """The minimalist bootstrap toolset for conda and Python3."""
 
-    homepage = "https://conda.io/miniconda.html"
+    homepage = "https://docs.anaconda.com/miniconda/"
 
     for ver, packages in _versions.items():
         key = "{0}-{1}".format(platform.system(), platform.machine())

var/spack/repos/builtin/packages/mpc/package.py

@@ -11,7 +11,7 @@ class Mpc(AutotoolsPackage, GNUMirrorPackage):
     with arbitrarily high precision and correct rounding of the
     result."""
 
-    homepage = "http://www.multiprecision.org"
+    homepage = "https://www.multiprecision.org"
     gnu_mirror_path = "mpc/mpc-1.1.0.tar.gz"
     list_url = "http://www.multiprecision.org/mpc/download.html"
 

var/spack/repos/builtin/packages/openbabel/package.py

@@ -12,7 +12,7 @@ class Openbabel(CMakePackage):
     search, convert, analyze, or store data from molecular modeling, chemistry,
     solid-state materials, biochemistry, or related areas."""
 
-    homepage = "https://openbabel.org/wiki/Main_Page"
+    homepage = "https://openbabel.org/index.html"
     url = "https://github.com/openbabel/openbabel/archive/openbabel-3-0-0.tar.gz"
     git = "https://github.com/openbabel/openbabel.git"
 

var/spack/repos/builtin/packages/pbmpi/package.py

@@ -9,7 +9,7 @@
 class Pbmpi(MakefilePackage):
     """A Bayesian software for phylogenetic reconstruction using mixture models"""
 
-    homepage = "https://megasun.bch.umontreal.ca/People/lartillot/www/index.htm"
+    homepage = "https://github.com/bayesiancook/pbmpi"
     url = "https://github.com/bayesiancook/pbmpi/archive/refs/tags/v1.8c.tar.gz"
     git = "https://github.com/bayesiancook/pbmpi.git"
 

var/spack/repos/builtin/packages/quantum-espresso/package.py

@@ -14,7 +14,7 @@ class QuantumEspresso(CMakePackage, Package):
     pseudopotentials.
     """
 
-    homepage = "http://quantum-espresso.org"
+    homepage = "https://quantum-espresso.org"
     url = "https://gitlab.com/QEF/q-e/-/archive/qe-6.6/q-e-qe-6.6.tar.gz"
     git = "https://gitlab.com/QEF/q-e.git"
 

var/spack/repos/builtin/packages/relion/package.py

@@ -12,7 +12,7 @@ class Relion(CMakePackage, CudaPackage):
     refinement of (multiple) 3D reconstructions or 2D class averages in
     electron cryo-microscopy (cryo-EM)."""
 
-    homepage = "http://www2.mrc-lmb.cam.ac.uk/relion"
+    homepage = "https://www2.mrc-lmb.cam.ac.uk/relion"
     git = "https://github.com/3dem/relion.git"
     url = "https://github.com/3dem/relion/archive/4.0.0.zip"
     maintainers("dacolombo")